British Made 6Mm Brass Hose Repair Fitting 6Mm Hose Connector (10) - Huddersfield Gas
Micro Air Push In Fitting Quick Pneumatic Elbow Connector for 4~6mm Hose | eBay
6mm Push to Connect Fittings,CEKER 6MM to 1/8 Inch NPT Male Thread Push In Fittings Air Fittings Air Line Quick Connect Fittings Pneumatic Fittings Air Hose Fittings 3D Printer Accessories 5Packs :
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Series 21 Female Coupling with 6mm Hosetail - Waterworks Window Cleaning