Amazon.com: Fuel Line Connector for 3/8" OD Pneumatic Nylon Tube Hose Union Quick-Connect, Fit for 10mm OD Nylon Tubing/Gas Line Pack of 4 : Automotive
Gardening Accessories Outdoor 3/4 Car Garden Hose Adapter Quick Connect Repair Tubing Connector Tap Connection Tube Fittings 1/2 - AliExpress
1868X10X6 by Danfoss | Quick Connect Air Brake Adapter | Male Connecto — HoseWarehouse
Straight Pneumatic Push to Quick Connect Fittings M5 x 4mm OD 4pcs - Black,Silver Tone - Bed Bath & Beyond - 30414601
Watts 1/2 In. x 3/8 In. OD Tubing Quick Connect Plastic Coupling - Parker's Building Supply