12MM John Guest Push Fit Water Fittings - Caravan / Motorhome / Boat / Campervan | eBay
Push to Connect Tube Fitting - Nylon Plastic - Straight Adapter - 12mm Tube OD x 3/8" NPT Male - Pkg Qty 5
6mm- Red Handle Valve: Inline Brass Water, Oil, Air, Gas Fuel Line Ball Valve Pipe Fittings - Temu
Amazon.com: Y Shape Push Fittings, 12mm (1/2”) OD Push to Connect Quick Fitting, Air line Push Lock Tube Fitting Splitter, 10Pcs : Industrial & Scientific
Amazon.com: 12mm Quick Fitting, 1/2” OD Push to Connect Pipe Tube Straight Fittings, Pneumatic Air Line Connector 20Pcs (PU12) : Industrial & Scientific
Pneumatic Push to Connect Air Pipe Fittings 12mm Tube OD x 1/2" NPT Male Thread | eBay