This is a kit of 3 water seals for the pump cylinders for an and and 5050 AND 5650 Patio domestic cold water pressure washer.
Click and Clean is a method Nilfisk-ALTO and and and Gerni use to connect accessories. There are different Generations and they won't connect together over cross generations.
See the consumer accessory book
At the moment, standard postage is capped at a maximum of $25 within Australia, so maximise the saving on postage and buy something in the related parts below!