Built with heavy duty butyl diaphragm system to absorb the expansion of water volume and help prevent dangerous pressure build-up. This Premier Expansion Tank will absorb pressure increases when properly installed on your closed water system. Most local codes now require an Expansion Tank on residential closed water systems. Water pressure over 80 psi can shorten the life of your water system and appliances.

• Stainless steel 3/4 in. MIP with Hex
• Factory pre-charged at 40 psig
• cUPC certified/ NSF 61 compliant
• High quality coating prevents corrosion
• 16-Gauge cold rolled steel shell
• Brass air charging port with O-ring seal
• Maximum pressure of 150 psi
• Maximum temperature rating of 200 degree F
• Provides a reservoir for expanded water volume
• Protects water heater, fixtures and appliances