Parker CPI Single Ferrule Compression Fitting, NPT Male Connector, 3/8 in. Tube OD x 1/2 in. Male NPT, 316 Stainless Steel

Take 3/8 in. tube into a 1/2 in. male NPT port with nothing hidden in between. The Parker 6-8 FBZ-SS handles the size step and the tube-to-pipe transition on a single 316 stainless body.

Three-eighths tube into a half-inch port is a workhorse pairing on sample systems and pressure taps, and it is exactly the combination you end up improvising with a bushing when the right connector is not on the shelf. Improvised joints are the ones that show up on your next leak survey.

Parker’s CPI single ferrule grips and seals in one action, keeps the parts count low, and remakes cleanly after an instrument comes out for calibration. Collins-Oliver stocks it in Baton Rouge for same-day pickup or nationwide shipping. Call (800) 247-5756.