LEONTOOL Valve Core Removal Tool Kit — High & Low Pressure Brass Quick-Couplers with O‑Rings

The LEONTOOL AC Valve Core Removal Tool Kit is a complete brass-bodied quick-coupler set designed to remove and replace high- and low-pressure valve cores in R134a, R1234yf and R22 vehicle air-conditioning systems without releasing refrigerant.

If you service automotive air-conditioning, this compact kit groups the tools and spare parts needed to swap valve cores quickly while minimizing refrigerant loss. Built mainly from brass for corrosion resistance, the set includes both high and low pressure couplers, replacement valve cores for common refrigerants, and O-rings to restore a tight seal after maintenance. The quarter-turn side ball valve and integrated O-rings reduce the chance of accidental leaks during core removal, letting you work more efficiently and safely.

How does this kit prevent refrigerant from escaping during service?

The couplers feature a side-mounted ball valve that opens and closes with a simple quarter-turn, isolating the system while you remove or install valve cores. Integrated O-rings form a hermetic seal around the connection to keep refrigerant contained.

• Quarter-turn ball valve isolates service port quickly
• Integrated O-rings for a complete seal
• Brass construction resists deformation and maintains sealing surfaces

Which vehicle systems and refrigerants will this tool work with?

This kit is compatible with most standard Schrader-style valve cores used in R134a, R1234yf and R22 automotive A/C systems. It is not suitable for valve cores built to the JRA specification, so confirm the valve type before starting work.

• Includes parts for R134a, R1234yf and R22 service ports
• Works with common Schrader valve cores and standard service ports
• Not compatible with JRA-spec valve cores—verify prior to use

What does the kit include and how does that speed up repairs?

The package bundles two quick couplers (high and low), two valve core removers, replacement valve cores for R134a and R22, plus large and small O-rings to reseal fittings. Having spare cores and seals on hand reduces downtime by avoiding extra trips for parts.

• 2 x R134a valve core removers (high and low pressure)
• 2 x quick couplers: red high-pressure (16 mm I.D.) and blue low-pressure (13 mm I.D.)
• 2 x R134a cores, 2 x R22 cores, plus large and small O-rings

How durable and reliable are the components for repeated use?

Major components are machined from brass for corrosion resistance and wear resistance, reducing the chance of deformation during repeated service. The robust build and replaceable seals mean the couplers retain a tight fit and reliable operation over time.

• Brass body offers anti-rust and impact resistance
• Wear-resistant parts maintain sealing integrity longer
• Replaceable O-rings and spare cores extend useful life of the kit

Who is this for: The LEONTOOL AC Valve Core Removal Tool Kit is aimed at professional automotive technicians, mobile A/C service providers and well-equipped DIYers who perform refrigerant-side maintenance. It’s particularly useful when you need to change valve cores quickly, avoid refrigerant loss during servicing, and carry essential spare parts for on-the-spot repairs. Confirm valve type compatibility—especially avoiding JRA-spec cores—before use to ensure a proper fit and safe operation.