HVAC Thermometers

Features: 3-1/8" (PSI, °F) ga 1/4" MFL Exclusive 3/8" ball valve design Full 3/8" bore all the way through the block increases flow over the standard block designs Ball valve rotates 90° between two teflon washers requiring little effort to turn, even under pressure Opens and closes quickly with only a quarter turn Visual knob position quickly indicates if valves are open or closed Color coordinated gauges for multi-refrigerant recognition Includes three 1/4" SAE nylon barrier hoses with manual ball valves

Plugs into PC board on furnaces, boilers, air handlers or any system with a fused PCB. Maximum Amperage of 3 Amps. Features/ Benefits Auxiliary wires for more applications. Built-in light for dark, hard to reach areas. For low voltage circuit testing w/o wasting fast-blow fuses. **NOT for for permanent use, does not replace a factory accepted fuse.

A good quality vacuum pump is an integral tool for complete A/C service. Mastercool® vacuum pumps are durable and time-tested. They stand up to the most grueling conditions and will provide years of reliable service. Mastercool® offers a complete selection of pumps. Regardless of your service requirements, Mastercool® has a model for your applications. Features: New U.S. Design Stronger motor Gas ballast valve helps prevent oil contamination caused by high moisture Easily removable vapor discharge/oil fill port. Contains internal check valve to prevent escape of liquid oil Large oil level ...

Features: Free-floating piston type valves reduce o-ring wear. Extra access port for vacuum line. Silicone dampened gauges smooth out needle movement. Gauges can be easily recalibrated in the field to maintain accuracy. Extra large sight glass for visual refrigerant check. Large easy-to-grip knobs.

Features: Designed for double or single flare in copper, aluminum, soft steel brake line, and brass tubing (to 45 degrees) Includes five adapters 3/16" through 1/2" (4.8mm through 12.7mm) Chrome swivel, made of alloy steel reduces friction Forged yoke made of heat treated steel Housed in a blow-molded case