3/4" TestanDrain Model 1011Pressure Relief Valve Kit. These pressure relief valve trim kits are compatible with TESTanDRAIN Models 1011 and 2511 and can be installed without draining the entire system. The basic pressure relief kit includes a Model 7000 pressure relief valve (175 PSI standard), bypass tube, barbed elbows (2), and hose clamps (2). The "T" pressure-gauge trim kit includes a Model 7000 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). Other PSI available upon request.