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Nu-Calgon 4050-11 (0.1 oz. Vessel) EasySeal Ultimate LS/UV

Free shipping on orders over $29.99

$65.37

$ 28 .99 $28.99

In Stock
  • The genuine Nu-Calgon 4050-11 is the EasySeal Ultimate LS/UV and is considered a leak sealant.
  • EasySeal Ultimate LS/UV permanently seals large leaks with rapid fusion technology for a stronger bond.
  • The Nu-Calgon 4050-11 is easiest to install with direct inject and works with all refrigerants.
  • Nu-Calgon EasySeal Ultimate LS/UV has new brighter UV dye.
  • Nu-Calgon, the brand you trust, provides quality chemicals and specialty products for professional use only in the air conditioning, refrigeration and heating markets.


The EasySeal line has proven to be the number one trusted leak sealant brand for years, with millions of leaks sealed. Now Nu-Calgon has made EasySeal even better with EASYSEAL ULTIMATE – the strongest and fastest leak sealant on the market, now with the ability to treat systems up to 10 tons in one application! THE NU-CALGON 4050-11 EASYSEAL ULTIMATE LS/UV IS FOR PROFESSIONAL USE AND SHOULD ONLY BE USED IN ACCORDANCE WITH ALL REGULATIONS AND PROPER SERVICE PRACTICES. PLEASE SEE PRODUCT LABEL OR CONTACT NU-CALGON DIRECTLY FOR USE INSTRUCTION. IT IS RECOMMENDED TO UTILIZE THE APPROPRIETE PPE (PERSONAL PROTECTIVE EQUIPMENT) DURING APPLICATION.


Joby619
Reviewed in the United States on June 25, 2024
I bought this product based on what the AC tech told me he uses. I used this product and charged my AC in July of 2023 and it worked all season. It is now June 2024 and my AC is still ice cold. This product definitely sealed the leak.
Anthony D Harris
Reviewed in the United States on July 2, 2023
Didn't work for me at all
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