Review on 🌊 T-H Marine Black Floor Drain and Vent Cover - 2.5 Inches by Steven Adams

I bought 2 drain caps with the intention of only using one of them for the plumbing. The other is a rustproof flat lid. It was barely enough to cover the 2 1/2" hole I cut, but it was shallow and allowed most of the water to run over the edge. This drain cap is a nice thick black plastic. The inside of the drain hole flares out about 1/3" into a 2 1/2" hole for a very snug fit. The mounting holes are chamfered so you can use 6X1 or 8X1 stainless steel pan head screws for flush mounting. The ONLY thing What I didn't like was that the thick plastic meant the water had to run over that edge.For my use I needed something completely flat.When my boat is in the water when it rains water collects between the seats and the original Drain I need a drain that allows as much water as possible to drain over the rim of the lid, otherwise it's a nice plastic drain lid.