Adapter 1/8" male to 1/4" female Made by Sparmax Airbrush Co. 47459361108 | eBay
1pc Airbrush Air Hose Adaptor 1/4'' Bsp Female To 1/8'' Bsp Male Air Brush Connector For Air Compressor - Power Tool Accessories - AliExpress
2pcs 1/8 - 1/4 in. Airbrush Hose Adapter – HobbyistHaven
Amazon.com: Ismeally 3in1 6FT(1.8m) Nylon Airbrush Air Hose Tool 1/8"-1/4" Adapter Fitting Coupling Kit Spray Paint Gun Air Brush Kit Quick Release Adapter : Tools & Home Improvement
Amazon.com: Master Airbrush Brand 1/4" BSP Female to 1/8" BSP Male Fitting Conversion Adapter Bushing, Connector for Airbrush Hoses and Compressors : Tools & Home Improvement
1x Mini Airbrush Air Hose Adapter Connector 1/4 Bsp Female To 1/8 Bsp Male Spray Gun Air Hose Quick Coupler Adaptor - Power Tool Accessories - AliExpress
Amazon.com: CHAWNIAO Premium-Quality 6-Ft Airbrush Air Hose, 1/8"-1/4" Braided Airbrush Air Hose, Adapter Suit for Airbursh Kit : Arts, Crafts & Sewing