Nu-Calgon 417175 Evap Foam

Works great for cleaning window units, I have 3 small units, and it was able to clean all with no issues before running out, cleans coils great, Easy and no smell.

Very happy. Great product, I used it on my mini split unit on the indoor condenser head. Used it in the coil and sprayed the fan blades that were clogged with dust. Has a high pressure small stream that blew off everything on coils, foamed up, and dragged it down to pan, used water from there to send it out the drain tube. Then used it on the fan blades to clean them off and then sprayed water from a squirt bottle to drain off onto a towel below. Well worth it. Spent about 20 minutes on the process and used the can up.

Works as expected! I use this with my mini splits as per my cousin who is an HVAC guy. It's no rinse BUT I do an annual clear and my mini split is get so disgusting that I always rinse. I bought a garden sprayer, fill it with water and rinse like crazy after I left the foam sit for a while. That's just MY preference. I also bought a kit to create a protective area so the spray and water don't get all over. There are youtube vids that give great instructions on how to do the whole process and what to buy. It is very time consuming to clean 6 mini splits but do one a day and save yourself tons of $!! Its easy and very satisfying! Good product. Def recommend.

I have two Midea 8000 BTU window air conditioning units I purchased way back in June 2022. The first one I got worked so well I bought and installed a second unit, when my rooftop 3 ton unit did the same old conk out during a heatwave that summer. Needless to say I take very good care of both units, and try to keep them in tip top working condition. I do not want to be with out AC again. Even with that good maintenance, both units seemed to be struggling just a bit and I read about deep cleaning (not just rinsing with a hose and scrubbing with a brush) the evaporator, and condenser coils as part of the routine. I found this item, and after reading the reviews, and watching the videos, and thought I would try Nu-Calgon 417175 Evap Foam. Purchased Jun 28, 2024 Size: 1.13 Pound (Pack of 1). It took me a bit, although not long to figure out, you need to keep shaking the can to keep it foaming. Example: Shake the can, spray a section of the coil, shake the can, spray another section of the coil, and so on like that until the entire coil was coated. I also got a couple of paper towels to keep my hands clean. It says it can be left on, but having never used Nu-Calgon 417175 Evap Foam before, I thought I would rinse it off anyway. After an hour or so, I got the brush and scrubbed the coils. Then I used a two gallon pump up gardening sprayer with plain water for the rinsing part. Even though previously I washed and used a brush on the coils yearly, the amount of dirt that evaded my efforts was... well, almost shameful. Nu-Calgon 417175 Evap Foam removed stuff I didn't even know was there. The rinse catch bucket was proof enough... ack! Call me nuts, but I like the scent. It didn't bother me at all. Currently we are in the midst of a nasty brutal heatwave this year, but you wouldn't know it in the house because both AC units are running as if they were new, out-of-the-box. This product works, you may want to give it a try. Thanks Nu-Calgon 417175 Evap Foam for helping me keep those AC units clean!

Works great. A solid buy to clean ac

I never thought about cleaning the coils of an AC unit or heat pump until I owned an RV. I learned the hard way that not cleaning your coils dramatically drops the efficiency of your cooling unit and also retains moisture, increasing the chance for pinhole leaks of your cooling system and the need for (expensive) unit replacement. This foam does a great job of cleaning grunge off the cooling fins around your coils. You can either rinse with water (if outdoors) or let everything air dry without rinsing. It's not super-cheap, but it's easy to use and makes a potentially tedious task quick and easy. Recommended!

I'm really impressed with this item! From the moment I unboxed it, I could tell it was well-made and designed with the user in mind. Setup was straightforward and quick, which is always a huge plus. In terms of performance, it has consistently exceeded my expectations. It does exactly what it's supposed to do, and it does it reliably and efficiently. I've been using it regularly for a while now, and it still feels as good as new. What I particularly appreciate is its ease of use. The features are intuitive, and I didn't need to consult a manual to figure things out. It truly makes my life easier. Overall, this has been an excellent purchase, and I genuinely feel it offers great value for the price. If you're looking for a dependable and high-quality item that delivers on its promises, you won't be disappointed with this one.

Weak pressure