INJECT. RUN. SEALED.

Easily repair leaks in air conditioning, automotive, and refrigeration systems.
Safe for all systems and refrigerants.
More than 3 MILLION units sold since 2015!

Seal Your Leak ➔

HVAC and Refrigeration

Sealants & Products for Residential and Commercial Systems

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Sealants & Products for Passenger and Commercial Automotive A/C Systems

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Sealants & Products for your boat or yacht

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Our Bestsellers

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Direct Inject ULTIMATE 3 in 1Direct Inject ULTIMATE 3 in 1
Direct Inject ULTIMATE 3 in 1
From $46.95
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HVAC Guys Foam Blaster Coil CleanerHVAC Guys Foam Blaster Coil Cleaner
HVAC Guys Foam Blaster Coil Cleaner
From $17.95
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Save $71.90
Direct Inject SealantDirect Inject Sealant
Direct Inject Sealant
From $35.95 $107.85
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Leak Savers refrigeration Direct Inject Sealant leak stop HVAC leak sealer cover UVDirect Inject UV
Direct Inject UV
From $36.95
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Flow Treat Drain TabletsFlow Treat Drain Tablets
Flow Treat Drain Tablets
From $8.99
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Leak Saver Leak Shot Direct Inject Air Conditioning and Refrigeration Sealant Injector and Condensate Line BlasterLeak Shot HVAC - Injector and Drain Blaster
Leak Shot HVAC - Injector and Drain Blaster
$37.95
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Refrigerant R290 Upright Charging Self Sealing Can 8ozRefrigerant R290 Upright Charging Self Sealing Can 8oz
Refrigerant R290 Upright Charging Self Sealing Can 8oz
From $42.95
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HVAC Guys Flow Tabs Drain Pan TreatmentHVAC Guys Flow Tabs Drain Pan Treatment
HVAC Guys Flow Tabs Drain Pan Treatment
From $28.50
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Refrigerant R600a Upright Charging Self Sealing Can 6ozRefrigerant R600a Upright Charging Self Sealing Can 6oz
Refrigerant R600a Upright Charging Self Sealing Can 6oz
From $41.95
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HVAC Guys Lineset and System FlushHVAC Guys Lineset and System Flush
HVAC Guys Lineset and System Flush
From $49.95
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Leak Shot HVAC PRO - Injector and Drain BlasterLeak Shot HVAC PRO - Injector and Drain Blaster
Leak Shot HVAC PRO - Injector and Drain Blaster
$39.95
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Flash Charger Liquid Charging AdapterFlash Charger Liquid Charging Adapter
Flash Charger Liquid Charging Adapter
$29.95
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Contractor Bulk Packs

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UV Dye 48 Unit Box Leak Saver Direct Inject Air Conditioning and Refrigeration Freon Leak SealantDirect Inject UV (48 unit Bulk Box)
Direct Inject UV (48 unit Bulk Box)
$1,399.95
In stock
Direct Inject Sealant - 6 PackDirect Inject Sealant - 6 Pack
Direct Inject Sealant - 6 Pack
$179.95
In stock
UV Dye 6-Pack Leak Saver Direct Inject Air Conditioning and Refrigeration Freon Leak SealantDirect Inject UV - 6 Pack
Direct Inject UV - 6 Pack
$194.95
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Direct Inject Sealant (48 unit Bulk Box)Direct Inject Sealant (48 unit Bulk Box)
Direct Inject Sealant (48 unit Bulk Box)
$1,349.95
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Direct Inject Ultimate 3 in 1 (48 unit Bulk Box)Direct Inject Ultimate 3 in 1 (48 unit Bulk Box)
Direct Inject Ultimate 3 in 1 (48 unit Bulk Box)
$1,699.95
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Direct Inject Sealant Small System (48 unit Bulk Box)Direct Inject Sealant Small System (48 unit Bulk Box)
Direct Inject Sealant Small System (48 unit Bulk Box)
$1,049.95
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Direct Inject UV Small System (48 unit Bulk Box)Direct Inject UV Small System (48 unit Bulk Box)
Direct Inject UV Small System (48 unit Bulk Box)
$1,099.95
In stock
Leak Saver Leak Shot Refrigerant Grade CO2 Cartridges for Direct Inject Air Conditioning and Refrigeration Sealant Injector and Condensate Line BlasterLeak Shot HVAC Refill Cartridges - Refrigerant Grade CO2
Leak Shot HVAC Refill Cartridges - Refrigerant Grade CO2
From $18.95
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UV Dye 3-Pack Leak Saver Direct Inject Air Conditioning and Refrigeration Freon Leak SealantDirect Inject UV - 3 Pack
Direct Inject UV - 3 Pack
$104.95
In stock
UV Dye 6-Pack Leak Saver Direct Inject Air Conditioning and Refrigeration Freon Leak Sealant with UV Glasses and UV LightLeak Saver Direct Inject UV 6 Pack with Glasses & 51 LED UV Light
Leak Saver Direct Inject UV 6 Pack with Glasses & 51 LED UV Light
$205.95
In stock
Direct Inject ULTIMATE - 3 PackDirect Inject ULTIMATE - 3 Pack
Direct Inject ULTIMATE - 3 Pack
$124.95
In stock
Direct Inject ULTIMATE - 6 PackDirect Inject ULTIMATE - 6 Pack
Direct Inject ULTIMATE - 6 Pack
$234.95
In stock

Nikolas T.

"I successfully used this on a troublesome 410A, LG eight point mini split (48,000btu). I now use it in all new installations."

Nathan B.

"As a HVAC contractor I have started using this product over other sealants for a few reasons. Price is about half of what the other companies sell for. It’s super easy to install. And it comes with a dye so if the leak is to large you won’t have trouble finding it."

Carey C.

"Used it on a number of older R22 AC units at rental properties. Has stopped the leaks in all of them. They were all difficult to find leaks either very small or internal to units, but large enough you would have to service the unit once or twice a year."