1-1/2" Bulk Test Plug, Rubber Body 13 psi

Ultra-durable pressure-relief pneumatic plug for testing DWV (drain, waste, and vent) systems Valve has no moving parts, minimizing the risk of failure or malfunction Can be inserted through a test tee to seal out of round pipe Maximum Back Pressure: 13 PSI / 30 ft Suitable for use in PVC, ABS, and cast-iron piping systems Pressure-relief valve releases excess pressure into the atmosphere to prevent plug from rupturing within piping and to ensure pipes don‚Äö slip out of place