Marketing InformationTest-Tite Techno-Caps Deep 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 either ABS or PVC pipe. They feature a 1-inch-deep solvent-weld socket that provides adequate room to adjust for errors on piping that isn't cut straight, making jobs easier for contractors. Once installed, these drain test caps effectively test up to five stories of head pressure (22 psig).