WATER FILLER SOCKET WITH AIR VENT AND CLOSED FLAP Producer: SEAFLO Product code: SFWH1-151-166-01 Used in caravans, campers and boats Made of high-quality plastic (ABS) resistant to weather conditions. It has a built-in air vent - 13mm Designed for hose with a diameter of 30 and 34 mm. External dimensions: 151 x 166 mm. Included: two keys gasket mounting screws locking without key Below are the exact dimensions and a photo gallery. We issue a receipt or invoice for each item sold.