Nu-Calgon4171-75 Evaporator Cleaner, Aerosol, 18 fl oz -2 Pack

PROS:* Works exactly as advertised.* Easy to apply.CONS:* A nozzle might have made things a tad easier, and I mean marginally so.USE:Applied per instructions and it worked marvelously. I moved into my new home over six months ago and the summer got hot and there were dust storms, etc, long story short - the fins of my evaporator were pretty nasty.I applied this cleaner and watched as it did its magic. I used a hose and nozzle attachment set to mister to gently rinse the fins once foam did its thing. I wasn't necessary, I could see the sludge running down the fins, I just did it for good measure. It left them looking quite literally like new.

Easy to use and easy clean up, evaporates quickly. Spay a little water after to wash and all good. Some grills were damaged and had to buy "Cenipar FCR6 Ring Fin Comb Set Cleaning Brush Coil Condenser Brush Compatible with Air Conditioners" to rake the grills back into position. I bought two cans because I have two AC units on the RV but I only needed half a can for both AC rooftop units on the RV. Seems to do the job and doesn't make a mess, nice sent, a little sprinkle with a hand spray bottle and done. See Todd's Tech tips on your tube, RV tech and RV Training Academy. Lots of good tips for RVers.