1/4NPT Thread: Features a standard 1/4NPT thread for secure and leak-proof connections in pneumatic systems. Wide Compatibility: Suitable for various pneumatic tools and air compressor accessories for versatile use.
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1/4" Quick Connect High-Pressure Sewer Nozzle, Stainless Steel Rust-Proof Drain Cleaner for Pipe Dredging & Outdoor Cleaning
Aliexpress UK
Quick connect Air line fittings types: 1/8", 1/4", 3/8". And there is pre-applied sealant on NPT male thread for better sealing.
eBay
Pressure Washer Quick Connect Kit 3/8 Inch Female and Male Thread Pressure Washer Adapter Hose Fittings Stainless Steel
Aliexpress UK
Quick and convenient connection system with great sealing and high efficiency. Features: These plugs are made of high-quality brass, which is corrosion-resistant, wear-resistant, rust resistant, durable, and easy to install.
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1Pc Universal Tap Water Plastic Hose Pipe Joint Tube Quick Connect Garden Mixer Tap Adaptor
Aliexpress UK
Project name: C-type hose coupling Material：Iron with nickel plating Features All steel nickel-plated Real material from inside to outside, fashionable warp. Double sealing to prevent air leakage Carbon steel nickel-plated does not deform or leak.
eBay
1pc Quick-Connect Hose Nozzle with Adjustable Spray - Heavy-Duty Brass Construction, Compatible with Garden Hose, Car Wash
Aliexpress UK
46 Pcs 6Mm Pneumatic Quick Push in Connect Air Tube Fitting Kit,(6Mm Straight/Elbow/Tee/Splitter Connector and 4-6,4-8,6-8Mm Reducing Connector). After the hose is inserted to the bottom, it is not easy to pull it out, so it is convenient to connect different pneumatic tools.
eBay
2PCS High-Pressure Washer Adapter Kit M22-14mm Male Thread Quick Connect Fitting 5000PSI
Aliexpress UK
After the hose is inserted to the bottom, it is not easy to pull it out, so it is convenient to connect different pneumatic tools. The pneumatic connector can be used repeatedly and needs to be replaced in case of air leakage.
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1/4 inch Tube to 1/4 inch Tube push fit elbow quick connect for RO water system Set Of 10
Aliexpress UK
【Easy to Intall】: Insert the hose you need to connect into the bottom of the connector, the blue spacer can be rotated 360 degrees, allowing you to make faster installation connections.
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High Pressure Washer Accessories 1/4 Quick Connector Anti-Tangle Adapter Connect Hose and Water Gun for Karcher K Series
Aliexpress UK
Air pipe joints are parts used to connect air source pipelines and pneumatic equipment. They are usually used in industrial automation, such as automated production equipment in machinery, automobiles, electronics, packaging, and other industries.SpecificationColor: BlueMaterial: PU & PlasticInner Diameter: 8mmOuter Diameter: 15mm / 19/32 InchesPacking List: 5pcs of quick-release pneumatic air line hose fittings kit connectorAdvantageThe quick-release connectors air line fittings are made of great PU and plastic, resistant to high pressure, not easy to deform or break, and suitable for long-term use.Good sealing, push-in design, easy, fast, and safe connection of pipes. Ensure a firm connection and prevent gas leakage.Built-in stainless steel locking claws make it fit tightly with the connected pipe and not easy to come out.
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High Power Washer Nozzle Tips Set with Upgraded Rubber Protector Cover 4Pcs Pressure Washing Nozzle with 1/4" Quick Connect #035
Aliexpress UK