For convenient filling of fresh water tanks in motorhomes, with the help of well-known quick coupling systems for 1/2 inch hoses (Gardena, etc.). Suitable for water tanks with and without overflow. Bayonet closure with 3 pins suitable for 78 mm diameter. Used on box van motorhomes, alcoves, partially integrated, integrated and liners of all common manufacturers. Please compare the original tank opening shown with number of pins and diameters. Two supplied seals, in different thicknesses, are for use for distance compensation and tight fit. Tighten the adapter slightly with a short turn to the right. Insert the supplied hose onto the outlet opening, prevents swirling when filling the tank. Die Drucköffnungen am WAFA ermöglichen den Druckausgleich bei Wassertanks ohne Überlauf. When the water tank is full, excess water runs out of the openings. Own development, made in Germany. Material: PET, UV-resistant and suitable for drinking water. Recyclable plastic. Additional hose: UV-resistant and suitable for drinking water. Gaskets: PET Protect from heat from 60 °C, do not treat with boiling water. Slight variations in colour or surface structure possible, no impairment of function, additive manufacturing. Regulation (EU) No 10/2011 of the European Commission on plastic materials and articles intended to come into contact with food (Europe). Box contents: 1 WAFA water filling adapter, 1 hose, 1 original Gardena O-ring (assembled), 2 sealing rings. (hose coupling shown in the picture not included)