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Nu-Calgon 4050-02 A/C Easy Seal Leak Sealant 2+1

Climate Doctors
(56800)
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US $124.76
as low as $42.56/mo with
Condition:
New
Out of Stock148 sold
Shipping:
US $14.99 Standard Shipping.
Located in: Colorado Springs, Colorado, United States
Delivery:
Estimated between Wed, Dec 10 and Sat, Dec 13 to 94104
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Returns:
30 days returns. Seller pays for return shipping.
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eBay item number:132005428849
Last updated on Sep 04, 2025 11:59:37 PDTView all revisionsView all revisions

Item specifics

Condition
New: A brand-new, unused, unopened, undamaged item in its original packaging (where packaging is ...
UPC
0681001405027
Brand
Nu-Calgon
Model
4050-02
MPN
4050-02
Category

About this product

Product Identifiers

Brand
Nu-Calgon
MPN
4050-02
Ean
0681001405027
GTIN
0681001405027
UPC
0681001405027
Model
4050-02
eBay Product ID (ePID)
15033527251

Dimensions

Weight
2lbs.

Additional Product Features

Custom Bundle
No

Item description from the seller

About this seller

Climate Doctors

99.1% positive feedback•164K items sold

Joined Feb 1999
Climatedoctors serves both trade professionals and homeowners with the very best of brand name heating, air-conditioning (HVAC), refrigeration, HVAC equipment, tools and supplies. We can help with ...
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Detailed seller ratings

Average for the last 12 months
Accurate description
4.9
Reasonable shipping cost
4.5
Shipping speed
4.9
Communication
4.9

Popular categories from this store

See allcategories
Furnaces/HeatersHydronic Pumps & PartsHydronicsIndoor Air Quality-IAQMini-Split SystemMotors & AccessoriesRefrigerationReplacement HVAC PartsRheem Replacement Parts

Seller feedback (60,797)

All ratingsselected
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  • *****- Feedback left by buyer.
    Past 6 months
    Verified purchase
    The circuit board arrived, well packaged, and safe from postal harm. For the price, I did hope that they would expedite the shipping using overnight services. Outside of that, the condition was great, good quality so far, and it appears that it is working as described.
  • *****- Feedback left by buyer.
    Past year
    Verified purchase
    The product was delivered in the condition as promised. The packaging looked slightly worn but not more than expected for an item no longer in production and likely many years old. The price seemed reasonable for a discontinued item. There was a slight (2 days) delay in delivery but not an obstacle for us since the a/c unit was our upstairs unit. When it arrived I loaded the batteries and it fit perfectly into the existing base and started the a/c immediately. Overall we are pleased.
  • *****- Feedback left by buyer.
    Past 6 months
    Verified purchase
    Exactly as described. Great product at a fair price Fast shipping A+ seller. Highly recommend
See all feedback

Product ratings and reviews

Learn more
4.5
20 product ratings
  • 16 users rated this 5 out of 5 stars
  • 1 users rated this 4 out of 5 stars
  • 1 users rated this 3 out of 5 stars
  • 0 users rated this 2 out of 5 stars
  • 2 users rated this 1 out of 5 stars

Would recommend

Good value

Good quality

Most relevant reviews

See all 19 reviews
  • by vm9jycplrse@deleted
    Jul 19, 2016Top favorable review

    Huge improvement over electronic leak detectors

    Ideally use as last step in combination with: (1) Emerson sight glass (enables visual confirmation of very low system internal moisture concentration BEFORE next step), (2) Spectroline UV leak detection dye and (3) NuCalgon AC Easy Dry which converts tiny amount of internal moisture into a lubricant. Since the EasySeal is activated to solidify by exposure to water (humidity in the surrounding air outside the freon lines) at any point of leak, it is crucial that the Freon system be extremely free of water prior to the EasySeal injection. While these proactive steps add some cost up front, they easily pay for themselves in greatly extended system reliability, freedom from breakdown due to loss of freon (which also circulates all lubrication back to the compressor and cools the compressor) ...

    Verified purchase: YesCondition: NewSold by: BHVzaNYbQ1u@Deleted

  • by deskrunner
    Aug 21, 2019Top critical review

    Cost me thousands

    Followed directions. It was taking about a week for the freon r22 to leak down to 1 or two pounds. One can went in but the leak kept going. Can two went in 24 hours later without a hitch and freon behind to a pressure of 60. Came back several hours later to 150psi on the low side and the high side. This indicated a locked up compressor. Turns out the compressor was offline and could not be coaxed to come back on. Had to replace the entire r22 system. Seems like this is the culprit and I cannot recommend it to anyone else. As the system was leaving I looked for the leaks but did not see any outflow anywhere. The lines were flushed and reused, so they were not the culprit. Did not see any other signs of leakage

    Verified purchase: YesCondition: NewSold by: upd1200

  • by dj109
    Jul 12, 2016

    So far its working ...

    I have only had it installed for three weeks or so ... no leaks so far ... I would like to mention that the hose included with the kit has a check valve in near the puncture valve. You need to reverse purge air in the line by loosing the hose at the suction line. You can not purge air at the can. I assume this is to prevent high line pressure from rupturing the can.

    Verified purchase: YesCondition: NewSold by: climatedoctors

  • by georges7009
    Sep 22, 2016

    Awesome product

    Awesome product, works well when you have small hard to find leaks but you might have to add freon ones a week for three weeks until the leak is sealed, this product travels with the freon in your system and as it leaks out it hardens and seals it saved a friends lots of money, he's unit is still working after two years.

    Verified purchase: YesCondition: Pre-OwnedSold by: wolfscratch706

  • by mikieb46
    Sep 01, 2017

    It really works

    I was skeptical in the beginning, installed and waited 4 days before adding refrigerant. Works great my 18 year Lennox running better than ever, all at a cost of 1 pound of R22, excellent

    Verified purchase: YesCondition: NewSold by: hvacmegastore

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