This listing is for a pack of 2 air fittings. Compatible with PCL Fittings. Features Euro Male quick release fittings with 1/4" BSP Male Thread and Female quick release fittings with 1/4" BSP Female Thread. Both have a built-in valve to prevent air escaping when changing tools. The male fittings have a 14mm hex for tightening, and the female fittings have a 19mm hex for tightening. Both are zinc-plated for corrosion protection.