Freon Can Tap: Smoothly connect manifold gauge hose with the r-134a freon refill cans to properly fill your ac system Compatibility: Include both r134a self sealing and puncture style can taps, fits EPA-required self-sealing freon can and the old-style single puncture bottle Tank Adapter and Valve Core Remover: Comes with extra tank adapter for connecting 1/4" SAE tap fitting to 1/2" ACME hose fitting. Dual head valve core tool will easily remove small or large valve cores Long Lasting Materials: The can tap are made of solid premium brass and aluminum which make them can even work under extreme conditions, features with industrial grade rubber seals to prevent leaking Easy to Work: Benefit from precise threading technology and precise valve control, you can assemble and operate efficiently without worrying about loose or leaking connections Lichamp R134a Can Tap, Automotive R 134a Self Sealing Can Tap and Puncture AC Freon Can 134a Adapter Fittings, TA02