The PrimoChill Dual Male G 1/4in. SX Extension Coupler is useful to adapt a female fitting to a male fitting. The coupler can be used with any G 1/4in. threaded fitting(s). Specifications Thread: 2x Male G 1/4in. Height (with thread): 20mm Height (without thread): 10mm Material: Coated Brass Included Parts 1x Male to Male G 1/4in. SX Extension Coupler 2x Installed orings Warnings Not responsible for any hardware damage. Use at your own risk. Candy SX finishes can vary in tone based on surfaces. Knurled surfaced appear darker than smooth surfaces!