The Swiftech 1/4" BSPP Chrome Plated Brass 1/2" Barb Fittings w/ O-Rings mount in all Swiftech products sporting 1/4" BSPP ports. The o-rings ensure a watertight seal.
The Swiftech 1/4" BSPP to 1/2" Barb Reservoir Port Fitting is specially designed to fit inside of the fill-port or alternate outlet cavity of the MCRES Micro Rev2 and to facilitate the use of a 5/8" socket to fasten the fitting. The fitting is made of brass and then covered in high-polish chrome plating.