Tomahawk HydraRester™ Water Hammer Arrester, Series: 650, 1/2 in Nominal, Male C x Press Fitting, 350 psig, 1 to 11 Fixture Unit Capacity, 250 deg F, Copper Body, EPDM O-Ring, 8-1/4 in L x 1-3/8 in W, Domestic
Lifetime cycle tested at US testing laboratories to withstand 10,000 shock cycles Factory tested to withstand 500,000 cycles without failure (654-C tested) HydraRester™ male sweat fittings are compatible with press-fitting systems, such as Viega ProPress™ and all push-fitting systems Allows for installation in 2 x 4 wall cavity Installs at any angle ASSE 1010 certified as a water hammer arrester that is "designed to provide continuous protection, without maintenance" allowing the HydraRester to be installed without access panels Type L copper tube arrester