Designed to withstand high boost and high temperature. Made from 4 ply reinforced silicone. Does not swell or burst even under extreme conditions. Corrosion resistant. Fit type: Vehicle Specific.
Every year I try to replace the ventilation grille as a precaution. Every year I have TERRIBLE attempts to connect to an external vent. This year I tried something new and I will never go back there. I put this silicone grommet in each end of a 4" duct and it holds and connects great without those pesky screw terminals!