In residential drain systems, this heavy-duty test cap is essential for effectively testing drain, waste, and vent systems. Made from durable PVC, it can withstand pressures of up to 17 psig and test systems with up to 40 feet of water. Available in various sizes for both ABS and PVC, it provides a reliable solution for ensuring the integrity of plumbing installations. Its robust design makes it a practical choice for both professional plumbers and DIY enthusiasts.