RedRock Gallo Drain Gun- with 5 Unthreaded CO2 Cartridges for A/C Condensate Line - Air Conditioner Cleaner Blaster Opener Kit with Five Cartridge Clears HVAC Clogs

Worked excellent on clearing condensation A/C line in my home. It was really backed up, drip pan would get full multiple Times a day and wet vacum was not cutting it. This stuff really works for diy- ers. We cut the pipe, didnt use spout that comes upward, didnt want product to accidentally go into the unit. Then closed it with a coupling pvc pipe (didnt seal it in case we need to do it again next year). Be aware after cylinder is used it will be extemely cold. Do not touch with bare hands, leave it in the container until it cools off- then remove.

Easy to use and surprisingly simple design. Been cleaning out my condensation line for a few years using this and no problems so far. Did run out of cartridges though so I bought some more in bulk.

Do not buy this thing! I bought it to unclog my a/c drain and it worked once and then crapped out. The first cartridge was perfect, worked great. I went to blow a second one through the the line and it barely did anything at all. I thought, ok, maybe a dud. I tried a third and got just a hiss and a cold cartridge. I looked at the cartridges and the actuator wasn't penetrating them enough to do anything but just barely let anything come through. I went in to do a return and it says non returnable and non replaceable. That's convenient. Look for something else!

Works well and a lot cheaper than a local plumbing supply store. Definitely worth purchasing.

It worked well, even though the rubber cone-shaped nozzle was a tiny bit small for our drainpipe fitting, The instructions were very brief (with no diagrams) but with careful study we figured out what to do. We only needed one cylinder to clear the line, using repeated "squirts" of compressed air. A lot of white gunk came out, after which we poured about a half-gallon of water through the line for good measure.

Worked as described. There is no way this will burst a drain pipe. It does however have enough pressure to unclog most clogs. I poured bleach and white vinegar down the pipe, then used this to blow the small clog out the pipe. Had to use a couple CO2 canisters, but well worth the price over an HVAC tech!

Why did you pick this product vs others?:Product is well priced and I had good luck with it clearing my condensate drain line. Looking ahead, I am having a horrible time ordering the correct refill cartridges for this device, and Red Rock is less than helpful in recommending a working CO2 cartridge solution. I've been sent around to multiple people in the company, only to finally be told that I need to call in for the proper reference cartridge. Bogus. Make ordering refills easier!! Buyer beware. This gun will NOT accept threaded cartridges. You need a 16oz, non threaded cartridge, and it needs a long neck or will NOT work. While I'm happy it worked, it took 3 of my 5 cartridges to do so. If nothing else, I plne to just use the hose and rubber stopper to hook it up to my air compressor in the future and just throw this away when I run through the other two cartridges. Also, FYI - if you order the wrong cartridges, they are NOT returnable!!

Great service, Great product.