​​5PCS PC Pneumatic Quick Connector - 4-12mm Push In Fitting for 1/8" 1/4" 3/8" 1/2" BSPT Thread Air Hose & Tube,Industrial Use​

​​5PCS PC Pneumatic Quick Connector - 4-12mm Push In Fitting for 1/8" 1/4" 3/8" 1/2" BSPT Thread Air Hose & Tube,Industrial Use​

Aliexpress UK