PPP® Water Hammer Arrester, Lead Free, System Rated, 1 in Nominal, NPT, 250 psig, 114 to 154 Fixture Unit Capacity, -40 to 212 deg F, Copper Body, EPDM O-Ring, 11-1/4 in OAL, Domestic
A maintenance-free installation is assured when using this type of Arrester the only moving part is the free-moving piston furnished with O-ring seals which have been tested for reliability in excess of normal operating ranges.