A lot of states now require that your boats drain plug be removed when leaving the lake and it has to remain open until your ready to launch your boat again. Bail-R-Matic Boat Plugs automatically open when youre out of the water and closing back up when youre launching. It works similar to a check valve that drains your boat when driving it, trailering or docking on a boat lift. When launching the boat or sitting still, it closes off so water cant get in. It also meets the state requirements in most states including Minnesota for draining and launching the boat. Seals tight when on the water when fishing, tubing, swimming, etc. Keeps the weight off your boat lift or boat trailer when raining. Made in USA. Style: Expansion TH-100, Threaded PT-500. Cancer and Reproductive Harm- www.P65Warnings.ca.gov. Type: Plugs.
