Black plastic water inlet fitting for Gerni Super 140.1 domestic use cold water pressure washer water inlet fitting into pump housing.
Amongst other Nilfisk branded pressure washers, it suits the Nilfisk Super 130.1 and Super 140.1 PLUS
This is where the mains cold water is connected by the garden hose to the machine. I've used a photo of a similar item, to illustrate the part. I'll update it with a correct photo ASAP Andy 14/05/2020