Gerni domestic pressure washer green "O" ring that fits on the male quick release end of the high pressure hose that fits in the spray gun pistol grip.
You are paying for a SINGLE "O" ring.
FYI There are two of these in the POS (point of sale) "O" ring kit Pn.128470198 HERE
This "O" ring should suit the following Gerni models
Gerni CLASSIC 100.3 and the Gerni Classic 110.4 and the Gerni CLASSIC 120.4 and the CLASSIC 125.2
as well as the Gerni Super range, such as the SUPER 130.2 and the SUPER 135.2 and the Gerni Super 135.3 and the Gerni Super 140.3 PLUS and the Super 145.2 as well as the Gerni ULTIMATE 130.2
As well as the corresponding Nilfisk-ALTO models.
Click and Clean is a method Nilfisk-ALTO and KEW and WAP and Gerni use to connect accessories. There are different Generations and they won't connect together over cross generations.
See the consumer accessory book HERE
Maximise the saving on postage and buy several Puregiene toilet rolls a box of Tissues and some soap or maybe some packets of dustbags, or a hose or a new floor tool, or some other accessories!
At the moment standard postage within Australia, is capped at a maximum of $20!