Built with heavy-duty butyl diaphragm system to absorb the expansion of water volume and help prevent dangerous pressure build-up. This Everbilt 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.
Highlights
Stainless steel 3/4 in. MIP with hex
Factory pre-charged at 40 psi
Certified with cUPC and NSF 61 compliant
Brass air charging port with O-ring seal
16-Gauge cold rolled steel shell
High quality coating prevents corrosion
100% butyl rubber diaphragm lined with polypropylene
