Hydronic Equipment & Parts

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Cash Acme 3/4 in. Vacuum Relief Valve
Cash Acme 3/4 in. Vacuum Relief Valve
Item # 151838

The VR-801 Vacuum Relief Valve is designed to protect hot water supply systems and pressure vessels against negative pressure. Installed on the cold water supply line, the Cash Acme VR-801 closes tightly under pressure and opens at a 1 in. mercury vacuum. Atmosphere admitted to the system breaks the vacuum, preventing collapse of the storage tank.

  • Brass body
  • Silicone seat disc
  • Prevents internal vacuum conditions
  • Guards against siphonage
  • Opens quickly in emergency situations
  • Every valve is tested for performance prior to shipping

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Wilkins Hose Connection Back Flow Preventer 3/4 in. FNH x 3/4 in. MNH Lead Free
Wilkins Hose Connection Back Flow Preventer 3/4 in. FNH x 3/4 in. MNH Lead Free
Item # 261011

The BFP-8F Hose Connection Vacuum Breaker is utilized in low health hazard applications such as service sinks, laundry tubs, and standard 3/4" hose bibbs for protection against backsiphonage of polluted water through a garden hose. The BFP-8F includes a manual drain feature for freeze protection, and breakaway set screw to eliminate unauthorized removal. It has a maximum working water pressure of 125 psi and a maximum working water temperature of 180°F. Designed for hose bibb attachment, BFP-8F materials include a brass valve body, buna nitrile elastomers, acetal polymers, and stainless steel internals, with an optional chrome finish.

  • Design features manual drain to protect against freezing
  • Breakaway screw protects against unauthorized removal
  • Compliant for use on standard garden hoses
  • Stainless steel internals resist corrosion
  • ASSE Listed 1011
  • IAPMO Listed
  • CSA certified B64.2 (BFP-8F)
  • CUPC certified B64.2 (BFP-9)
  • NSF 64 listed

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NIBCO 1/2" OD ACR Copper Coupling With Stop
NIBCO 1/2" OD ACR Copper Coupling With Stop
Item # 324314935

Nibco ACR Copper Coupling

  • 0.5" Tubing
  • Dezincification Resistant
  • NFPA 99 Healthcare Facilities Gas And Vacuum Systems And The Compressed Gas Association, Pamphlet G4.1 (Medical Gas)
  • With Stop
  • Mfg #039923306944
  • 0.5" Tubing
  • Dezincification Resistant
  • NFPA 99 Healthcare Facilities Gas And Vacuum Systems And The Compressed Gas Association, Pamphlet G4.1 (Medical Gas)
  • With Stop

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Armstrong Pumps 3/4 in. Cast Iron Circulator Flange Kit
Armstrong Pumps 3/4 in. Cast Iron Circulator Flange Kit
Item # 523140

3/4 cast iron circulator flange. Heavy-duty and can be used on competing models. Genuine factory replacement.

  • Universal type flange fits bell and Gossett 100 series, Armstrong Pumps
  • Fits Armstrong Astro 2 series
  • Can be used on B & G circulators
  • Factory replacement
  • Heavy-duty
  • Includes nuts and bolts
  • Includes gaskets
  • Fits on Armstrong S & H circulators
  • Fits taco "00" series
  • Fits Grundfos "UP" series

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Watts 1 in. Sweat Brass Isolation Pump Flange
Watts 1 in. Sweat Brass Isolation Pump Flange
Item # 523102

This 1 in. isolation pump flange is designed to isolate circulator pumps to facilitate circulator pump replacement or repairs. It features a brass body and flange with bottom loaded blowout proof stem, Buna-N Stem O-Ring seal, and virgin PTFE seat. Optional T-handle included.

  • Brass body and flange
  • Buna-N stem O-ring seal
  • Solder end connection
  • Virgin PTFE seats
  • Optional T-handle included
  • Helps with circulator pump replacement or repairs

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HAYDON Heat Base 750 3 in. Right-Hand End Cap for Baseboard Heaters
HAYDON Heat Base 750 3 in. Right-Hand End Cap for Baseboard Heaters
Item # 303516958

All HAYDON baseboard heating systems are manufactured to provide many years of trouble-free, safe, silent and economical heat distribution. Hot water baseboard systems generate naturally converted heat that rises gently, warming walls and blocking drafts, providing uniform heat throughout a home's entire perimeter. HAYDON's system operates smoothly and silently. With hot air, you constantly hear and feel fan on, heat on, draft, fan off, heat off. Slim and unobtrusive, the low profile Model 750s BTU output is ideal for efficient, economical residential installations.

  • Enclosure top-back panel: fabricated from 1-piece of sturdy pre-painted cold rolled steel designed for efficient air flow, with uniform surfaces and no dust-collecting cutouts
  • Fingertip positional damper: special hinging mechanism allows for finger-tip control, closes shut to keep out dust or opens wide for maximum heat output, damper deflects air into room, for better heating distribution
  • High strength brackets: die-formed from 1 piece of heavy gauge steel designed to strengthen the enclosure and protect the heating element against damage special notches hold the heating element to allow for quiet expansion won't break or bend, cannot pop out of place, a turn of the wrist removes the twist slide brackets, for easy location during installation
  • Noiseless element: aluminum fins are mechanically fastened to copper tubing to insure maximum heat transfer, elements have an expanded end for easy sweat connections without coupling
  • Silent glide expansion tracks: 2-unique polyethylene silent glide tracks eliminate expansion and contraction noises

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Watts 4.7 gal. Hydronic Expansion Tank Model #ETX-30, 1/2 IN. IPS
Watts 4.7 gal. Hydronic Expansion Tank Model #ETX-30, 1/2 IN. IPS
Item # 443929

This non-potable water expansion tank is designed for use in commercial and residential closed loop hydronic heating system piping to control the thermal expansion of hot water and maintain system pressure below the relief setting of the relief valve. This carbon steel tank is pre-charged at 12 PSI, tank volume is 4.5 gal. and features a durable expansion membrane that prevents contact of the water with the air in the tank. This rugged butyl diaphragm minimizes loss of the air change and ensures long and trouble-free life for the system. This tank is made of carbon steel with epoxy , mounts to supply piping, 1/2 in. MNPT system connection and a 0.302-32 in. charging valve connection (standard tire valve) to facilitate on-site charging of the tank to meet system requirements. The maximum working pressure is 75 PSI (5.3 BAR).

  • 4.5 gal. tank
  • Rugged flexible butyl diaphragm
  • Inline and free standing models
  • Steel construction
  • Precharged to 12 PSI
  • Max. Pressure 75 PSI
  • Durable expansion membrane prevents contact of water with the air in the tank
  • Carbon steal with epoxy
  • Commercial and residential applications
  • 1/2 in. MNPT system connection

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HAYDON Heat Base 750 3 in. Left-Hand End Cap for Haydon Baseboard Heaters
HAYDON Heat Base 750 3 in. Left-Hand End Cap for Haydon Baseboard Heaters
Item # 303516968

All HAYDON baseboard heating systems are manufactured to provide many years of trouble-free, safe, silent and economical heat distribution. Hot water baseboard systems generate naturally converted heat that rises gently, warming walls and blocking drafts, providing uniform heat throughout a home's entire perimeter. HAYDON's system operates smoothly and silently. With hot air, you constantly hear and feel fan on, heat on, draft, fan off, heat off. Slim and unobtrusive, the low profile Model 750s BTU output is ideal for efficient, economical residential installations.

  • Enclosure top-back panel: fabricated from 1-piece of sturdy pre-painted cold rolled steel designed for efficient air flow, with uniform surfaces and no dust-collecting cutouts
  • Fingertip positional damper: special hinging mechanism allows for finger-tip control, closes shut to keep out dust or opens wide for maximum heat output, damper deflects air into room, for better heating distribution
  • High strength brackets: die-formed from 1 piece of heavy gauge steel designed to strengthen the enclosure and protect the heating element against damage special notches hold the heating element to allow for quiet expansion won't break or bend, cannot pop out of place, a turn of the wrist removes the twist slide brackets, for easy location during installation
  • Noiseless element: aluminum fins are mechanically fastened to copper tubing to insure maximum heat transfer, elements have an expanded end for easy sweat connections without coupling
  • Silent glide expansion tracks: 2-unique polyethylene silent glide tracks eliminate expansion and contraction noises

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Watts Water Pressure Reducing Valve 3/4 in. Sweat x 3/4 in. FIP Lead Free
Watts Water Pressure Reducing Valve 3/4 in. Sweat x 3/4 in. FIP Lead Free
Item # 778453

This 3/4 in. lead free brass water pressure reducing valve is designed to reduce incoming water pressure to protect plumbing systems and reduce water consumption for commercial, industrial and residential applications. The easy maintenance assembly consists of a replaceable seat module, a solder union inlet by NPT female outlet and a bypass feature to control thermal expansion pressure. The temperature range is 33 to 160 degree F (0.5 to 71 degree C). Suitable for up to 300 psi (20.7 BAR), the pressure range can be adjusted from 25 to 75 psi (172 to 517 kPa) with the standard setting at 50 psi (345 kPa).

  • Solder union inlet by NPT female outlet
  • Sealed spring cage with stainless steel cage screws
  • Integral stainless steel strainer removable for cleaning
  • Replaceable seat module
  • Suitable for up to 300 psi
  • Pressure range can be adjusted from 25 to 75 psi
  • Temperature range is 33 to 160 degree F
  • Designed to reduce incoming water pressure to protect plumbing systems
  • Designed to reduce water consumption for commercial, industrial and residential applications
  • Standard setting at 50 psi

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Honeywell Home Lead-Free Water Heater Thermostatic Mixing Valve
Honeywell Home Lead-Free Water Heater Thermostatic Mixing Valve
Item # 2474288

AM-1 series adjusts, maintains and limits the hot water temperature settings to provide comfort and protect equipment at home. Designed to prevent scalding water and legionella bacteria growth by storing water at 140 degree F and higher. Delivers safe and comfortable water temperatures out of the faucet at 120 degree F.

  • Offers constant water temperature under changing operating conditions
  • Temperature is limited at any point and if cold water supply is interrupted, flow reduction occurs in seconds
  • Designed for easy maintenance and Teflon coating prevents mineral build-up and extends life
  • Provides reliable performance at minimum flow of 05 GPM and proportional valve for simultaneous control of hot and cold
  • Features dual purpose mixing or diverting values
  • Lead free products have products numbers end in LF
  • Available temperature gauge adapter in lead-free brass material with EPDM O-ring
  • Maximum safe operating pressure (psi)150 psi
  • Minimum flow rate (gpm) 0.5 GPM
  • Includes check valves on hot and cold ports

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DELAVAN 0.65 80A Oil Nozzle
DELAVAN 0.65 80A Oil Nozzle
Item # 309296371

The DELAVAN 0.65 80A Oil Nozzle has a stainless-steel, hollow orifice and features a brass body. Type A-nozzles are mainly used on burners with a hollow cone air pattern and for through puts up to 2.00 GPH. The droplet distribution is concentrated on the outside of the cone and results in good ignition and low-noise combustion. This boiler replacement part is compatible with an oil-burning appliance.

  • Precise spray angles and optional spray uniformity through new machining process
  • Reduced distributor size with shorter tangential slots to avoid plugging
  • Aerodynamic body configuration
  • Rolled threads to avoid metal chips and burrs
  • Sintered filter for maximum protection
  • Boiler replacement part is compatible with an oil-burning appliance
  • ISO 9001 certified

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Watts 1/2 in. Bronze Combination Fill Valve and Backflow Preventer, Threaded Union End Connections, Teflon Tape
Watts 1/2 in. Bronze Combination Fill Valve and Backflow Preventer, Threaded Union End Connections, Teflon Tape
Item # 316049329

This 1/2 inch bronze combination fill valve and backflow preventer is for use in commercial and residential hydronic heating systems to provide make-up water to the boiler, and prevent backflow when supply pressure falls below system pressure. It consists of a bronze backflow preventer, model 9D and a bronze feed water pressure regulator, model 1156F, in one pre-assembled unit. The high capacity fill valve provides quick system filling and purging. It is designed for use in the boiler feed lines of hydronic heating systems and has 1/2 inch union NPT inlet x NPT threaded outlet connections. The maximum pressure is 100 psi (6.9 bar).

  • Bronze body for durability
  • Threaded connections
  • Strainer screen
  • Horizontal or vertical installation
  • Maximum pressure is 100 psi
  • One pre-assembled unit of fill valve and backflow preventer

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NIBCO 3/4" OD ACR Copper Coupling With Stop
NIBCO 3/4" OD ACR Copper Coupling With Stop
Item # 324314936

Nibco ACR Copper Coupling

  • 0.75" Tubing
  • Dezincification Resistant
  • NFPA 99 Healthcare Facilities Gas And Vacuum Systems And The Compressed Gas Association, Pamphlet G4.1 (Medical Gas)
  • With Stop
  • Mfg #039923307125
  • 0.75" Tubing
  • Dezincification Resistant
  • NFPA 99 Healthcare Facilities Gas And Vacuum Systems And The Compressed Gas Association, Pamphlet G4.1 (Medical Gas)
  • With Stop

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NIBCO 7/8" OD 90degree  ACR Copper Street Elbow Long Radius
NIBCO 7/8" OD 90degree ACR Copper Street Elbow Long Radius
Item # 324314938

Nibco ACR Copper 90degree Long Radius Elbow

  • 0.88" OD
  • Dezincification Resistant
  • NFPA 99 Healthcare Facilities Gas And Vacuum Systems And The Compressed Gas Association, Pamphlet G4.1 (Medical Gas)
  • Mfg #9080400
  • 0.88" OD
  • Dezincification Resistant
  • NFPA 99 Healthcare Facilities Gas And Vacuum Systems And The Compressed Gas Association, Pamphlet G4.1 (Medical Gas)
  • with stop

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Honeywell Direct Connect Water Heater Kit Including Valve, Tee and 8 in. Flex Connector
Honeywell Direct Connect Water Heater Kit Including Valve, Tee and 8 in. Flex Connector
Item # 3554503

Honeywell AMX series Direct Connect reduces water heater installation time as the cold and hot port position eliminates the need for typical elbows and tees. New design requires a maximum of just two sweat connections. Requires fewer parts than previous models.

  • Designed to be directly installed on water heater hot outlet port
  • Offers constant water temperature under changing operating conditions
  • Temperature is adjustable using 3/16 allen wrench and if cold water supply is interrupted, flow reduction occurs in seconds
  • Features brass/stainless construction and Teflon coated of wear surfaces
  • Alternate hot port bypasses hot water directly from the tank to non-mixed temperature applications
  • Maximum safe operating pressure 150 psi
  • Operating temperature range (F)33 degree F to 80 degree F (cold water inlet); 100 degree F to 212 degree F (hot water inlet)
  • Minimum flow rate (GPM) 0.25 GPM; recirculation port: 1/2 in. NPT; alternate hot port: 1/2 in. NPT
  • Fluid temperature (F) mixed water supply--100 degree F to 145 degree F
  • Capacity 2.3 Cv

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NIBCO 5/8" OD ACR Copper Coupling With Stop
NIBCO 5/8" OD ACR Copper Coupling With Stop
Item # 324314933

Nibco ACR Copper Coupling

  • 0.63" Tubing
  • Dezincification Resistant
  • NFPA 99 Healthcare Facilities Gas And Vacuum Systems And The Compressed Gas Association, Pamphlet G4.1 (Medical Gas)
  • With Stop
  • Mfg #9001193
  • 0.63" Tubing
  • Dezincification Resistant
  • NFPA 99 Healthcare Facilities Gas And Vacuum Systems And The Compressed Gas Association, Pamphlet G4.1 (Medical Gas)
  • With Stop

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GRUNDFOS 3 SPD CRCLTR PMP 1/25HP 115V
GRUNDFOS 3 SPD CRCLTR PMP 1/25HP 115V
Item # 100298
UL Underwriters Laboratories (USA and Canada)
  • Incorporates a cast iron housing, three speed motor (Low/Med/High) and a built-in, removable check valve
  • Pump's performance parameters cover nearly all traditional heating applications- from radiant and baseboards, to fan coils and zoning and many others
  • 3 speeds allow to set up the circulator pump in a way that matches the system's requirements
  • Wet rotor design allows it to be virtually silent while operating

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Watts Dual Check Valve, Backflow Preventer, 3/4 in. FNPT Union Inlet x FNPT Outlet, Lead Free Cast Copper Silicon Alloy
Watts Dual Check Valve, Backflow Preventer, 3/4 in. FNPT Union Inlet x FNPT Outlet, Lead Free Cast Copper Silicon Alloy
Item # 290024
Eco-friendly item. Symbol indicates that the product is part of our EcoSource green purchasing program. Product meets our sustainability standards for one or more of the following high-performance categories: Water Conservation, Energy Efficiency, Indoor Air Quality, and Material Selection. Lead-Free Product.

This 3/4 by 3/4 in. lead free dual check valve prevents the reverse flow of polluted water from entering into the drinking water supply at the service entrance or at individual outlets. The valve consists of a lead free brass body construction, with two plastic replaceable check valves, and stainless steel springs. It is designed for non-health hazard residential water system containment, continuous pressure applications and is to be installed immediately downstream of the residential water meter, in a vertical or horizontal position. The minimum working pressure is 10 psi (69 kPa) and maximum working pressure is 175 psi (12 BAR).

  • Lead free brass body for durability
  • Can be installed vertically or horizontally
  • Compact design
  • Meets ANSI/ASSE Standard 1024
  • 3/4 in. union female NPT inlet x female NPT outlet
  • Designed for non-health hazard residential water system containment

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Watts Water Pres Reg 1 FIP x 1 FIP Lead Free
Watts Water Pres Reg 1 FIP x 1 FIP Lead Free
Item # 778456

This 1 in. lead free brass water pressure reducing valve is the standard model, designed to reduce incoming water pressure to protect plumbing systems and reduce water consumption for commercial, industrial and residential applications. The easy maintenance assembly consists of a replaceable seat module, NPT threaded female union inlet by NPT female outlet and a bypass feature to control thermal expansion pressure. The temperature range is 33 to 160 degree F (0.5 to 71 degree C). Suitable for up to 300 psi (20.7 BAR), the pressure range can be adjusted from 25 to 75 psi (172 to 517 kPa) with the standard setting at 50 psi (345 kPa).

  • NPT threaded female union inlet by NPT female outlet
  • Sealed spring cage with stainless steel cage screws
  • Integral stainless steel strainer removable for cleaning
  • Replaceable seat module
  • Suitable for up to 300 psi
  • Pressure range can be adjusted from 25 to 75 psi
  • Temperature range is 33 to 160 degree F
  • Designed to reduce incoming water pressure to protect plumbing systems
  • Designed to reduce water consumption for commercial, industrial and residential applications
  • Standard setting at 50 psi

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Watts 3/4 In 374a Iron Boiler Pressure Relief Valve, 30 Psi, Forged Brass Inlet
Watts 3/4 In 374a Iron Boiler Pressure Relief Valve, 30 Psi, Forged Brass Inlet
Item # 332521231

Watts 3/4 IN 374A Iron Boiler Pressure Relief Valve, 30 psi, Forged Brass Inlet Features A Flood Sensor With Sentryplus Alert Technology To Detect Excessive Water Discharges From The Relief Valve Requires purchase of activation kit to activate sensor Iron body with forged bronze inlet 550,000 BTU/hr rating Non-metallic disc-to-metal seating Set pressure 30 psi Mfg #F358553

  • Features A Flood Sensor With Sentryplus Alert Technology To Detect Excessive Water Discharges From The Relief Valve
  • Requires purchase of activation kit to activate sensor
  • Iron body with forged bronze inlet
  • 550,000 BTU/hr rating

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NIBCO 1/4" OD ACR Copper Coupling With Stop
NIBCO 1/4" OD ACR Copper Coupling With Stop
Item # 324314934

Nibco ACR Copper Coupling

  • 0.25" Tubing
  • Dezincification Resistant
  • NFPA 99 Healthcare Facilities Gas And Vacuum Systems And The Compressed Gas Association, Pamphlet G4.1 (Medical Gas)
  • With Stop
  • Mfg #9000353
  • 0.25" Tubing
  • Dezincification Resistant
  • NFPA 99 Healthcare Facilities Gas And Vacuum Systems And The Compressed Gas Association, Pamphlet G4.1 (Medical Gas)
  • With Stop

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Watts Hot Water Recirculating System with Built-In Timer
Watts Hot Water Recirculating System with Built-In Timer
Item # 100426993

Never wait for hot water again; The Watts Hot Water Recirculating Pump provides hot water at every faucet or shower when needed, eliminating wasted water. It is easy to install on any water system and requires no additional piping. The unique design of the pump ensures quiet, maintenance-free operation. The system includes a built-in 24 hour, a dual setting programmable timer to activate the pump only when needed.

  • Save money - up to 10% of your water bill
  • Maintenance free
  • Easy to install in less than 1 hour
  • Additional sensor valves available for homes with multiple plumbing loops
  • Hot water WHERE you need it
  • Hot water when you need it
  • Programmable timer is built-in so the pump turns on only when you need it
  • Not for use with tankless water heaters
  • Check compatibility to ensure it will work on your system
  • Reliable and easy to maintain

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3/4 in. Brass Lead-Free IPS Threaded Isolator Full Port Ball Valve with Rotating Flange and Adjustable Packing Gland
3/4 in. Brass Lead-Free IPS Threaded Isolator Full Port Ball Valve with Rotating Flange and Adjustable Packing Gland
Item # 303136770

All the features you trust from the original Isolator Uni-Flange ball valve, plus a 360 degree rotating flange that allows for orientation to any degree necessary for your installation. This forged brass full port ball valve features a blow-out proof stem, adjustable packing glands and a stainless steel snap ring for extra stability during installation. The only way to isolate circulator pumps.

  • Conical inlet to minimize turbulence
  • Replaces 3-components, eliminates 2-leak paths, saves approximately 20 minutes in labor
  • Fits virtually any standard circulator pump
  • Available with slotted holes for high velocity pumps
  • Prevents electrolysis
  • Eliminates galvanic corrosion

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Taco Comfort Solutions Freedom Flange 1 in. Cast Iron Flange Set for Hydronic Circulator
Taco Comfort Solutions Freedom Flange 1 in. Cast Iron Flange Set for Hydronic Circulator
Item # 953541

The Taco 1 in. cast iron Freedom Flange set includes: (2) flanges, (4) nuts, and (4) mounting bolts. These flanges are designed for use with Taco "00", "00e", "2400", and "100" series hydronic circulators. Easily installed and removed with a common wrench.

  • For use in a heating system
  • Compatible with a wide variety of Taco circulators
  • 1 in. Dia connection size
  • Unique hex design provides easy-on, easy-off installation with a standard adjustable wrench

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