Maintains refrigerant in gauge lines, enables secure & safe connection to 1/4 SAE fitting. Prevents refrigerant burns. CD2070 ¼ SAE valve core depressor safely depresses valve core eliminating refrigerant burns. The back sealing valve ensures minimum refrigerant loss from the hose so ensuring compliance with A.R.C guidelines for h&ling of refrigerants. FEATURES: Extra-large thumb screw core depressor ¼ SAE valve core depressor safely depresses valve core eliminating refrigerant burns Maintains refrigerant in gauge lines Enables secure & safe connections to 1/4 SAE fittings Back seat to hold gas in lines, coupler attaches to 1/4" male flare Made in the USA. INCLUDES: CD2070 1/4 SAE Core Depressor ( with extra-large thumb screw core depressor), & 12-Month Warranty. SPECIFICATIONS: Country of origin: USA.