PRV-L Kit 200psi for 1-1/2" & 2" is compatible with AGF TESTanDRAIN Models 1011 and 2511 and can be installed without draining the entire system. The basic pressure relief kit includes a Model 7000L pressure relief valve (175 PSI standard), bypass tube, barbed elbows (2), and hose clamps (2). The "T" pressure-gauge trim kit includes a Model 7000L pressure valve (175 PSI standard), Model 7500 pressure gauge, Model 7600 3-way universal gauge valve, tee, plug, nipples, bypass tube, barbed elbows (2), and hose clamps (2).