This pre-charged, all stainless steel shock arrestor features stainless steel bellows and a 3/4 inch male IPS threaded connection. It is designed for 1-11 fixture units and to operate on all domestic and commercial lines up to 150psi working pressure, 250psi static pressure and a temperature range of -100 F to 300 F, -73 C to 149 C. It complies with PDI WH201 and ASSE 101, and can be purchased BAA compliant.