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Your cart is empty.NAVAC NEVK3 is a tool kit that includes two NAVAC NVR1 Valve Core Removal tools, one NAVAC NHB1 Refrigerant Hose, one NAVAC NHB2 Refrigerant Hose, and one NAVAC NMV1 Micron Vacuum Gauge. HVAC technicians use the NVR1 Valve Core Removal Tool to remove and replace a valve core without losing the refrigerant in the HVAC system. It can be used for both 1/4″ and 5/16″ flare fittings, is pressure-rated for R410A systems, and is vacuum-rated to 20 microns. NHB1 refrigerant hose connects 3/8" fittings to 1/4“ fittings, while NHB2 refrigerant hose connects 1/2" fittings to 1/4“ fittings. NHB1 and NHB2 Refrigerant Hoses both have a 1/2-inch large internal diameter and are 6 feet long. They can withstand 3200 psi burst pressure and will operate at 640 psi working pressure. They are also made with 4-layer construction for low permeation to ensure refrigerants don’t escape into the atmosphere during the process. These tools are used together by HVAC technicians for rapid recovery and evacuation. Having them in 1 kit can help you spend less money.
Jeremy M Moyer
Reviewed in the United States on April 17, 2025
Great product. Worth the investment.
James
Reviewed in the United States on August 7, 2024
The Schrader removal tools and hoses work and seal very well. I work on larger equipment (75+ lbs of refrigerant) and noticed a difference.Hoses are a little tough to maneuver but that’s fine. But that raggedy vacuum gauge would not stop jump all over the place. Checked connections multiple times. Placed it on different ports. Even disconnected everything from the pump and just had the gauge on it, same thing. Took it off and put it on the bench and still pumping all over the place. Wasted time thinking it was something I did when it was just the gauge.Also the gauge is 1/4 male flare requiring you to use more fittings to connect it where you want, increasing chances of a leak when pulling vacuum.Just buy the hoses and core tool separately, it’s cheaper and spend the rest on a decent gauge. Thought I was getting a good deal when pricing everything out.
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