Leak Detectors & Test Instruments

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 ...

Yellow Jacket® TITAN 4-Valve Manifold With 60" RYB Hoses and 3/8" x 45° 49987 Forged aluminum alloy body makes this unit lightweight for handling ease with the durability and reliability required for repeated use. Features: Fourth hose to enable connection to hi-/lo-sides, refrigerant tank and recovery unit or vacuum pump for diagnostics, evacuation and charging without switching hoses 3/8" Vacuum port for use with larger hose to cut evacuation time by up to 33% (all other fittings are 1/4") Large, easy-to-read 3-1/8" steel case red and blue, 1% accuracy (Class 1) gauges Front access ...

Test pump pressure and cutoff of fuel oil pumps quickly and easily. No need to remove pump from oil burner. For use with all pumps of operating pressures up to 300 PSI. Use with vacuum gauge to analyze problems in oil lines caused by impurities, leaks or high restrictions. Quick hook-up fittings for easy testing. Accurately checks pressure, cutoff and vacuum under actual operating conditions. Liquid filled gauges for accurate readings. High pressure hoses for setting up today's higher pressure pumps. High impact case with handle. Complete with easy-to-follow instructions. Brass and high ...

Mastercool® introduces its new compact hand-held digital vacuum gauge with Bluetooth® wireless technology which combines the most advanced features to provide quick and accurate responses every time. Utilizing a state-of-the-art glass beaded thermistor and temperature compensation, Mastercool® is offering the latest technology to the HVAC/R technician. Included in this package will be the capability to download our free Mastercool Connect app. This will allow for full mobility as activity can be easily viewed on all compatible hand-held smart devices. Features: Sintered bronze inlet ...

Yellow Jacket® BULLET™ 7 CFM Vacuum Pump Wide mouth oil reservoir port for easier, cleaner filling.The Yellow Jacket® BULLET vacuum pump is a two-stage rotary vane oil-sealed 7 CFM pump that pulls down to 25 microns or better. Wide mouth oil reservoir port for easier, cleaner filling. Doubles as pump exhaust; threaded to attach garden hose for exhausting to remote location Large oil sight glass for easy monitoring of oil level Large brass oil drain for easy access to fast oil changes Internal intake check valve prevents oil backup into the system during a power failure Intake filter ...