Charging Accessories

Field service couplers connect to our special Enviro-Guard hoses to allow access to service ports on automotive R-134a A/C systems. The quick-connect design has an integral safety sleeve, which protects against injury and refrigerant loss if the coupler...

High side service couplers with red actuator connect to our special Enviro-Guard hoses to allow access to service ports on automotive R-134a A/C systems Quick-connect design has an integral safety sleeve which protects against injury and refrigerant loss...

High side service couplers with red actuator connect to our special Enviro-Guard hoses to allow access to service ports on automotive R-134a A/C systems Quick-connect design has an integral safety sleeve which protects against injury and refrigerant loss...

# Psi/kPa pressure readings # R-22 and R-134a temperature readings in degrees Fahrenheit # Replaces 11693

This Mastercool charging module is an accessory that turns the ML98210 ACCU-CHARGE II into an Automatic Programmable Scale. Module allows the user to control the exact amount of refrigerant. Includes a short hose for tank connection, USB cord, & 1/4"...

Assorted HNBR rubber o-rings generally used in AC systems to gap the connection to create leak proof seals. Having the correct o-ring on hand saves time & money. 91339 AUTOMOTIVE R12 & R134a O-RING ASSORTMENT (270 PIECE HNBR) 7/32” x...

Contains gaskets, O rings and depressors to repair R-12 and 134A hoses. R12/R134a CHARGING HOSE REPLACEMENT PARTS ASSORTMENT 42010 1/4" Gasket (10 pcs) 42014 1/4" Depressor (10 pcs) 42016 Screw Type Depressor (5 pcs) 90336 Gasket for 90335 (5 pcs)...

The Mastercool 89661-PRO is a professional grade manifold gauge set, featuring a professional extruded aluminum block and silicone-dampened gauges. This kit includes a 3-in-1 side-mount can tap valve tool. Gauges can be recalibrated Set of 3 R134a nylon...

Extended disconnect protection sleeve Meets SAE J639 and J2888 codes

Extended disconnect protection sleeve Meets SAE J639 and J2888 codes

Look no further than the Mastercool 83272 for a durable manifold gauge set. Specially designed gauges generate smooth needle movement with anti-flutter technology Well marked temperature scales are easy to read Fast and easy calibration for accurate...

Patented blue male manual coupler, connects easily to R134a service ports. All metal construction for extra durability. Patented, spring loaded depressor will not damage service valves. Can be removed from service port regardless of knob position without...