Marketing InformationDesigned to test up to 40 ft of vertical pipe, the Test-Tite mechanical cleanout test plug delivers a reliable seal that lasts longer than standard pneumatic test plugs to avoid leakage during testing. A clear cap allows users to monitor the test media as it drains and an expandable rubber gasket creates a seal that is both air and watertight. An innovative design allows the mechanical cleanout plug to hand tighten in place in seconds, with no tools, hoses or gauges needed for installation. The 6 in diameter model contains a drain line with a key to control drainage of the test media. All models feature durably designed plated steel parts that won't rust.