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2pcs Air Pneumatic 1/4" 3/8" 1/2" Thread Size Pm 20 Pm 30 Pm 40 Male Connector Quick Coupling Adapter Pipe Fittings - Pipe Fittings - AliExpress
EATON HANSEN, 3/8 in Coupling Size, Steel, Hydraulic Quick Connect Hose Coupling - 55JU88|40 - Grainger
![B&K 10-Pack 1/4-in x 3/8-in Threaded Quick Connect x Mip Adapter Fitting in the Brass Fittings department at Lowes.com B&K 10-Pack 1/4-in x 3/8-in Threaded Quick Connect x Mip Adapter Fitting in the Brass Fittings department at Lowes.com](http://mobileimages.lowes.com/productimages/7e6ab583-3032-4294-aa99-36cc6388db8b/04946386.jpg)
B&K 10-Pack 1/4-in x 3/8-in Threaded Quick Connect x Mip Adapter Fitting in the Brass Fittings department at Lowes.com
![3/8-Inch OD (tubing) x 1/4-Inch MPT (thread) Quick Connect elbow fitting, package of 2 – My Aqua Filter™ 3/8-Inch OD (tubing) x 1/4-Inch MPT (thread) Quick Connect elbow fitting, package of 2 – My Aqua Filter™](https://www.myaquafilter.com/wp-content/uploads/2020/07/3814.jpg)
3/8-Inch OD (tubing) x 1/4-Inch MPT (thread) Quick Connect elbow fitting, package of 2 – My Aqua Filter™
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Brass Male 3/8 x 1/4 BSP - Male x Female Reducing Bush Adapter Thread Reducer : Amazon.co.uk: Garden
![1/4" BSP to 3/8" BSP Female Thread Brass Reducer Connector Hex Head Reducing Bush Adapter Fitting for Air Water Oil (Pack of 2) : Amazon.co.uk: DIY & Tools 1/4" BSP to 3/8" BSP Female Thread Brass Reducer Connector Hex Head Reducing Bush Adapter Fitting for Air Water Oil (Pack of 2) : Amazon.co.uk: DIY & Tools](https://m.media-amazon.com/images/W/IMAGERENDERING_521856-T1/images/I/51wiVy9qLAL._AC_SY355_.jpg)
1/4" BSP to 3/8" BSP Female Thread Brass Reducer Connector Hex Head Reducing Bush Adapter Fitting for Air Water Oil (Pack of 2) : Amazon.co.uk: DIY & Tools
![Non-Leak Hose Quick Coupling 1/8" 1/4" 3/8" 1/2" Thread Pneumatic Elbow Fittings Quick Connector Coupler Hose Quick Joint Coupler Connector Adapter 4mm-12mm (Color : PL6 M5) : Amazon.co.uk: Garden Non-Leak Hose Quick Coupling 1/8" 1/4" 3/8" 1/2" Thread Pneumatic Elbow Fittings Quick Connector Coupler Hose Quick Joint Coupler Connector Adapter 4mm-12mm (Color : PL6 M5) : Amazon.co.uk: Garden](https://m.media-amazon.com/images/I/31-mIfnqYUL._SR600%2C315_PIWhiteStrip%2CBottomLeft%2C0%2C35_SCLZZZZZZZ_FMpng_BG255%2C255%2C255.jpg)