Profile: Brennan Industries, Inc. offers hydraulic and pneumatic fittings. Our fittings include flareless bite-type and SAE flange fittings type. We provide fittings in steel, stainless steel and brass materials. We also offer tube fittings & adapters, o-ring face seal fittings, brass & test point fittings, conversion adapters, flare-o fittings, o-rings & seas, live swivels and instrumentation valves.