DOMETIC WHITE FLUE KIT+T-PIECE. 3776 Description Dometic gas flue kit including a T-piece. It connects to the top of the fridge flue and directs gas exhaust through the side wall of the caravan or motorhome. This is the exhaust outlet kit, not a replacement for the larger ventilation grilles needed to cool the fridge. RMD8555, RMDX21 and RMDX25 fridges use a different, model-specific T-piece rather than the standard T-piece supplied in this kit. Retain the correct fridge-specific T-piece or replace it with the matching RMD/RMDX part.