Collection:Plastic Standard Air Couplings

View Tameson's range of plastic quick-connect couplings. These air couplings have a nominal diameter (DN) of 5mm, 7.2 mm. Plastic couplings are used in low-pressure applications with low mechanical loads; they can be used in situations where couplings made of brass cannot be used due to media influences. Plastic couplings are more cost-efficient than couplings made of stainless steel. DN 5 mm plastic couplings are compatible with metal couplings of the corresponding size. DN 7.2 mm plastic couplings are not compatible with the standard 7.2 mm couplings.