Fitment of Replacement Rubber Grommet for RV Black Water Tanks, # F02-2106

Published 05/25/2022

Question:

This gasket is for connecting a toilet to a black water tank, I think I got that part right. Problem, my tank is 3/8 inch thick, and the groove on this grommet looks to be about 3/16 inch, where the grommet slides onto the top of the tank. The difference in thickness of the groove and the thickness of the tank would not provide a good seal. Are there grommets that have a wider groove for thicker tanks? Thank you.

asked by: Richard A

Helpful Expert Reply:

The grove of the replacement Rubber Grommet for RV Black Water Tanks, # F02-2106 that you linked to is about 1/4". If your tank is 3/8", this will work, providing a tight seal.

expert reply by: Michael R