Yellow Jacket, 15912, PLUS II 1/2" Heavy Duty Combination Charging/Vacuum Hose with "C" 1/2" x 1/2" Connection, 12' Length Heavy duty construction with PLUS II barrier technology reduces permeation and vacuum loss. Large I.D. reduces vacuum time substantially over 1/4" or 3/8" hose. Features: Pull a more complete vacuum Faster refrigerant transfer Faster charging on large systems 3000 psi (207 bar) minimum burst, 600 psi (41 bar) maximum working pressure Operating temperature - 22 degree to 176 degree F ( - 30 degree to 80 degree C) Minimum bend radius: 10" (254 mm) Other fittings available on request Made in the USA. Note: Black only. 36" hose will pull to 25 microns and lower. Hoses longer than 8' not recommended for evacuation.