2PCS x Conversion Adapter. Red Adapter: 1/4" SAE (7/16" - 20 UNF) x 1.6cm/0.63in. Blue Adapter: 1/4" SAE (7/16" - 20 UNF) x 1.3cm/0.51in. Easy to Install: Simply screw to install, quick connector, red cap (Larger) is high pressure side converter and blue cap (Smaller) is low pressure side converter.
