2006 bambi black tank belly seal missing
On my 2006 Bambi 19', the black tank is above the floor, and the outlet goes through the floor and belly to the outlet plumbing.
There is a large square-ish hole cut in the belly for the black pipe to go through. The hole is kind-of sealed by 2 rectangular pieces of rubbery plastic that look molded; one of the long sides has a semi-circular cutout for half of the pipe.
The two pieces are just screwed on the outside edges to the belly pan with stainless screws.
Here's my problem - one of the two pieces fell off (in the driveway, thankfully). I've never seen any part like this anywhere.
Got any ideas on what can replace it and where to get it? It almost seems to be the thickness of a heavy mudflap.
2006 Safari Bambi 19'
2008 Silverado 1500