For 4mm to 5mm pipes.
Windscreen Screen Washer Hose Non Return One Way Valve fits 3 to 5mm ID Tube
Universal One Way Inline Washer Valve For Windscreen Wiper Jet Pump Front & Rear
Classic Car Universal Windscreen Washer Bottle Foot One Way Valve, GWW506 WSB139
One Way/Non Return Valve for 4 - 5mm Windscreen Washer Pipes Brand New
5 Universal Windscreen Washer Pipe One Way Non Return Valves For Audi, Fiat, VW
2 x One Way/Non Return Valves for 4 - 5mm Windscreen Washer Pipes Brand
