Marketing InformationTEST-TITE® Techno-Caps™ heavy-duty test caps are an effective and economical solution for testing DWV (drain, waste and vent) systems. These heavy-duty end caps are available in a variety of sizes for both ABS and PVC plumbing systems. They feature a sturdy design that can be solvent welded securely into place, preventing them from falling inside and clogging the pipe. Once installed, the drain test caps effectively test systems with up to 40 ft of water or 17 psig.