LOCKING WATER INLET FILLER CAP MOTORHOME CARAVAN BOAT VW CAMPER SELFBUILD BLACK
If it's not of sufficient quality, they don't make the shelves. LOCKING WATER INLET FILLER CAP. 40mm water hose fitting on the rear ( I suspect 38mm will clamp down too ). Sturdy ABS plastic locking filler available in either white or black.