Best Leak Saver in 2026

The Easiest Injection Method: No more fussing with messy syringes, hoses, or pressurized cans. The Leak Saver injects directly and easily into the system with a basic manifold gauge set or even easier with our Leak Shot Injection Kits. Note: for automotive systems, you will still need the standard 134A to 1/4” charging adapter. Mini-splits may require a 5/16” to 1/4” charging adapter.

A Permanent Fix For Leaks: The Leak Saver can permanently seal small refrigerant leaks where the complete refrigerant charge is not lost within 72 hours. It’s similar to how blood in your body reacts to a cut. When a leak occurs, the Leak Saver reacts with the air and moisture at the leak site to permanently seal the leak. When used for preventative maintenance, the active ingredient circulates safely in the system to seal future leaks.

Over Three Million Units Sold: With over 3 million units sold of this sealant formula since 2015, we are the most reliable leak sealant among HVAC professionals. Super concentrated and made to work with all types of refrigerants, it’s compatible with all types of refrigerants and oils (except ammonia).

The Easiest Injection Method: No more fussing with messy syringes, hoses, or pressurized cans. The Leak Saver injects directly and easily into the system with a basic manifold gauge set or even easier with our Leak Shot Injection Kits. Note: for automotive systems, you will still need the standard 134A to 1/4” charging adapter. Mini-splits may require a 5/16” to 1/4” charging adapter.

More Than 3 Million Units Sold Since 2015: The Leak Saver can permanently seal small refrigerant leaks where the complete refrigerant charge is not lost within 72 hours. It’s similar to how blood in your body reacts to a cut. When a leak occurs, the Leak Saver reacts with the air and moisture at the leak site to permanently seal the leak. When used for preventative maintenance, the active ingredient circulates safely in the system to seal future leaks.

With Added UV Dye for Finding Large Leaks: Seal it or find it! If you have a leak that is simply too large for leak sealants to seal, the added UV Dye will light up brightly at the leak site when using a UV flashlight.

The Easiest Injection Method: No more fussing with messy syringes, hoses, or pressurized cans. The Leak Saver injects directly and easily into the system with a basic manifold gauge set or even easier with our Leak Shot Injection Kits. Note: for automotive systems, you will still need the standard 134A to 1/4” charging adapter. Mini-splits may require a 5/16” to 1/4” charging adapter.

More Than 3 Million Units Sold Since 2015: The Leak Saver can permanently seal small refrigerant leaks where the complete refrigerant charge is not lost within 72 hours. It’s similar to how blood in your body reacts to a cut. When a leak occurs, the Leak Saver reacts with the air and moisture at the leak site to permanently seal the leak. When used for preventative maintenance, the active ingredient circulates safely in the system to seal future leaks.

With Added UV Dye for Finding Large Leaks: Seal it or find it! If you have a leak that is simply too large for leak sealants to seal, the added UV Dye will light up brightly at the leak site when using a UV flashlight.

THE EASIEST INJECTION METHOD: No more fussing with messy syringes, hoses, or pressurized cans. The Leak Saver injects directly and easily into the system with a basic manifold gauge set or even easier with our Leak Shot Injection Kits. Note: for automotive systems, you will still need the standard 134A to 1/4” charging adapter. Mini-splits may require a 5/16” to 1/4” charging adapter.

A PERMANENT FIX FOR LEAKS: The Leak Saver can permanently seal small refrigerant leaks where the complete refrigerant charge is not lost within 72 hours. It’s similar to how blood in your body reacts to a cut. When a leak occurs, the Leak Saver reacts with the air and moisture at the leak site to permanently seal the leak. When used for preventative maintenance, the active ingredient circulates safely in the system to seal future leaks.

OVER THREE MILLION UNITS SOLD: With over 3 million units sold of this sealant formula since 2015, we are the most reliable leak sealant among HVAC professionals. Super concentrated and made to work with all types of refrigerants, it’s compatible with all types of refrigerants and oils (except ammonia).

The Easiest Injection Method: No more fussing with messy syringes, hoses, or pressurized cans. The Leak Saver injects directly and easily into the system with a basic manifold gauge set or even easier with our Leak Shot Injection Kits. Note: for automotive systems, you will still need the standard 134A to 1/4” charging adapter. Mini-splits may require a 5/16” to 1/4” charging adapter.

3 In 1 Sealant + Moisture Remover + Uv Dye: Our proven leak sealant now includes moisture remover and UV dye for the complete system treatment! Now, you can seal your leak, remove system moisture, or find large leaks with the UV Dye...all in one easy to install package!

Over Three Million Units Sold Since 2015: The Leak Saver can permanently seal small refrigerant leaks where the complete refrigerant charge is not lost within 72 hours. It works similarly to how blood in your body reacts to a cut. When a leak occurs, the Leak Saver reacts with the air and moisture at the leak site to permanently seal the leak. When used for preventative maintenance, the active ingredient circulates safely in the system to seal future leaks.

The Easiest Injection Method: No more fussing with messy syringes, hoses, or pressurized cans. The Leak Saver injects directly and easily into the system with a basic manifold gauge set or even easier with our Leak Shot Injection Kits. Note: for automotive systems, you will still need the standard 134A to 1/4” charging adapter. Mini-splits may require a 5/16” to 1/4” charging adapter.

More Than 3 Million Units Sold Since 2015: The Leak Saver can permanently seal small refrigerant leaks where the complete refrigerant charge is not lost within 72 hours. It’s similar to how blood in your body reacts to a cut. When a leak occurs, the Leak Saver reacts with the air and moisture at the leak site to permanently seal the leak. When used for preventative maintenance, the active ingredient circulates safely in the system to seal future leaks.

With Added UV Dye for Finding Large Leaks: Seal it or find it! If you have a leak that is simply too large for leak sealants to seal, the added UV Dye will light up brightly at the leak site when using a UV flashlight.

Suitable for Systems Specifically Calling for R290: It can be used as a refrigerant substitute in retail food refrigerators and freezers (stand-alone units only). This product is NOT intended for use in systems not designed for R290.

Convenient Upright Liquid Charging Can: Our innovative design allows you to charge your system in liquid with the can standing upright. You can now conveniently stand the can upright on the refrigerant scale while weighing in the liquid charge.

Self-Sealing K28 ICOR Style Top (Can Tap Not Included): Our R290 refrigerant cans use a K-28 (ICOR style) self-sealing top valve. The K28 7/16” female to ¼” male can tap valve is not included.

THE EASIEST INJECTION METHOD: No more fussing with messy syringes, hoses, or pressurized cans. The Leak Saver injects directly and easily into the system with a basic manifold gauge set or even easier with our Leak Shot Injection Kits. Note: for automotive systems, you will still need the standard 134A to 1/4” charging adapter. Mini-splits may require a 5/16” to 1/4” charging adapter.

6 in 1 SEALANT + MOISTURE REMOVER + UV DYE : Our proven leak sealant now includes moisture remover and UV dye for the complete system treatment! Now, you can seal your leak, remove system moisture, or find large leaks with the UV Dye...all in one easy to install package!

OVER THREE MILLION UNITS SOLD SINCE 2015: The Leak Saver can permanently seal small refrigerant leaks where the complete refrigerant charge is not lost within 72 hours. It works similarly to how blood in your body reacts to a cut. When a leak occurs, the Leak Saver reacts with the air and moisture at the leak site to permanently seal the leak. When used for preventative maintenance, the active ingredient circulates safely in the system to seal future leaks.

Engineered to maintain maximum viscosity at high running temperatures

Thermally stable and long lasting

Lower moisture content than other oils

Genuine Robinair Premium High Vacuum Pump Oil is engineered to maintain viscosity at higher running temperatures

Carefully bottled and quality tested to ensure minimal moisture content

Excellent cold temperature properties for easier starting

HIGHER ACCURACY & RESOLUTION: The accuracy of LMC-100F is ±0.05% of reading +5g, the resolution is of 2g, capacity is up to 110lbs(50kg). 2 units: Kg/Lb.

PORTABLE & DURABLE CASE: A heavy-duty carrying case is included to protect the scale and make it easier to carry it to the work spot.

RUGGED & COMPACT DESIGN: Made of high-quality metal material, durable and sturdy, high accuracy and resolution.

Micro channel CONDENSER/Compresses more refrigerant at twice the RPMs (3, 300) and twice the horsepower (1HP)

Twin cylinder compressor (oil-less)/water resistance to withstand direct rain

Ceramic cylinder for longer life and less friction

Robinair Low Side Tank Adapter

1/2 inch ACME Female x Low-Side R-134a Coupler

Durable brass construction

Genuine Robinair Premium High Vacuum Pump Oil is engineered to maintain viscosity at higher running temperatures

Carefully bottled and quality tested to ensure minimal moisture content

Excellent cold temperature properties for easier starting

Color-coded scales

Sliding double “O” ring pistons reduce wear

Long life nylon seats

Contains four one quarter ounce applications of universal air conditioning system UV leak detection dye

Can be used in all R-134a R-12 and R-22 systems

Compatible with all PAG ester and mineral based refrigerant oils

Reusable R-134a gauge & hose

Easy-to-use thumb lever dispenser

Gauge displays pressure reading for accurate fill

You will receive: 2 sets are total of 4 pieces, including 2 pieces 6014 vacuum pump adapter and 2 pieces 6015 R134A refrigerant tank adapter, more convenient for you to use

Practical adapters: these tank adapters are as charging and service tools, can be applied to vacuum pump, can tap or oil injector to adapt between R12, R22 system and R134A systems

Function feature: these tank adapters provide a tight, secure, leak-free connection that allows you to quickly and easily connect and disconnect high flow

COMPACT & PORTABLE - Compact, portable battery design; Operates on one 9V battery (battery not included); Three separate display modes for kg, oz, and lbs; Digital charging scale capacity is up to 220 pounds and comes with a hard carrying case for extra protection

HIGH-QUALITY BUILD - High-visibility LCD screen and backlight for display; With an extremely large LCD display and backlighting, you'll have no trouble keeping track of your measurements; Professional and high accuracy design can meet your different measure requirements

NON-SLIP DESIGN - Aluminum combined with silicone creates high traction and prevents slippage; VIVOHOME refrigerant charging weight scale has a textured rubber coating on the platform surface, which helps tanks not to fall while measuring

HEAVY-DUTY VACUUM PUMP - Made of die-cast aluminum housing and a composite anti-slip rubber base, which is lightweight and durable; Perfect for those who are looking to self diagnose or recharging AC systems; It maintains air conditioning systems by efficient removing moisture before refilling the refrigerant

COMFORTABLE & PORTABLE DESIGN - Ergonomic grip handle is designed for superior comfort and portability; Built-in high volume cooling fan for extended use; Oil sight glass allows you to observe the oil level and quality at any time; The oil drain valve at the bottom ensures faster and more thorough emptying; 1 bottle of 0.29qt./330ml vacuum oil is also included

MANIFOLD GAUGE SET DESIGNED - Manifold gauge set is designed specially to measure pressure in refrigeration equipment; Carry bag is included for convenient storage and easy transpiration; Manifolds are equipped with large viewing glasses for easy viewing of refrigerant flow, and high-quality colorful pressure gauges ensure accurate readings

Brand new and high quality.

Material: metal + plastic

Suitable for car air-conditioning replacement and maintenance.

Product Type: High quality air conditioner valve core for R12 R134a air conditioning accessories

Package: This kit include 25pcs R12 and 10pcs R134a with 1 remover installer tool total 36pcs stored in a transparent plastic box

Suitable for car air conditioning replacement and maintenance, replacement refrigerant valve core leak

Contoured easy-grip handles for positive control; color-coded for ready identification

Sight glass to easily view refrigerant movement and condition during charging and recovery

Optional protective gauge boots available

Contoured easy-grip handles for positive control; color-coded for ready identification

Sight glass to easily view refrigerant movement and condition during charging and recovery

Optional protective gauge boots available

Run Quick 6CFM Vacuum Pump

6 CFM flow rate

Light weight and portable - 29 pounds

Brand New, OE replacement: UAC branded Oil.Fit Type: vehicle specific

100% Guaranteed Fit! Add your car (year/make/model) to Amazon's garage to confirm

Premium ISO/TS 16949 quality; tested to meet or exceed OEM specifications

Quick, accurate measurement of high and low pressure with two temperature compensated pressure sensors; automatic measurements of the evaporation and condensation temperature

83 refrigerants stored in the instrument: just one instrument covers all the most important refrigerants and, depending on the refrigerant, there is no need for different manifolds

Equipped with a large 2 line backlit display, 2 way valve block and a suspension hook, the HVAC/R instrument enables a convenient application

【 NEW BUILT-IN AIR MOTOR】No need for a separate air supply!

【 HIGH PERFORMANCE, PREMIUM BUILD】Made in the USA. Solid Thick Metal Construction for durability. Equipped with our brand new AutoLine Pro Ceramic Smoke Coil that outputs LOTS OF SMOKE and last a Lifetime. (Lifetime Guarantee!)

【 DIAGNOSE ALL TYPES OF LEAKS WITH ADAPTERS】Consistently smoke test EVAP systems, Vacuum leaks, low pressure Turbo leaks, Intake Manifolds, Cooling / EGR / Exhaust Systems, worn rubber, gaskets, seals, connectors, and more! The tapered smoke injection nozzle fits into virtually all hoses and lines.

Inlet Port: 1/4" Flare, Warm note: 1)Pressure Scale:0~400psi, 0~140psi 2)Length of hose:1.2m Red:1/4''-1/4'' Yellow:1/4''-1/4'' Blue:1/4''-1/4'' Please make sure your manifold gauge is in accordance with this size. Any question in using, please contact seller first. *** A self-paying vacuum pump Adapter needed if inflet not suitable.

High Efficiency and Low Noise, Heavy-duty Aluminum Alloy Casing, Oil Drain Plug Positioned at Bottom of Oil Reservoir,Internal High Volume Cooling Fan for Extended U

Exhaust Port with Exhaust Cap, Direct Drive Motor Allowing Easy Starting Which is Maintenance Free