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

Not sure why this is only 4 stars. It should be 5+ Easy to use. Instructions are clear and it WORKS. Recommended to use 1 cartridge. I used 2 just in case. The amount of GUNK that was at the outside end. gross and satisfying. Awesome and worth the money!

EXCELLENT product. Works great and fit the pvc pipe perfectly

If you are like me sometimes I jump before I look. In this case I had an in expected problem on a very hot day when my AC decided to stop working, so what do I do? I grab my phone go to Amazon search for the solution and I order something that has a lot of reviews. Unfortunately, this product has a lot of bad reviews that I did not see it does not work and cannot work work as there is not nearly enough gas in one of the canisters to clear a line in your air conditioner, the company knows this and yet they won’t return their products don’t buy or you will be sorry too!

Best thing I've ever bought for cleaning out ac condensate drain pipe. For cases where adding bleach, hot water, etc., wasn't enough to clear the blocked drain, this tool does the rest, by blasting the buildup with a co2 charge from the drain into oblivion.

This did not work for me but would probably work for a minor clog. This AC condensation line was in such an awkward place and too small for a regular snake I ended up having to cut a section of pipe with the clog out altogether and replace it. This clog was thick and hard. So I don't think this gadget stood a chance.

Worked as needed. Product did come with instructions. Easy to use

This product is what it claims to be but a wet dry vac is ideal for this job. If your unit is in the garage, setting up a host connect is also a very good option. We did that at our old house. It's best to have something that has consistent sustain pressure. This product only has very short bursts.None these approaches will work from the inside if you don't add a shut off value to keep air or water from pushing back into the AC blower. You have to force the air or water to only go through the drain line.If you don't want to add a cut off valve, use a wet dry vac to suck the water and gunk through the other end instead of pushing it out from inside.

This worked great. I had to 'engineer' an extension pipe to connect the gun to the clogged line. The line is 3/4" PVC. It connects to the evaporator box via a "T" for the standpipe vent. I only needed to clear one side of the "T", but the gun's nozzle wouldn't fit through the "T" to seal against the drain line. A short section of 1/2" PVC tube was all we needed. With duct tape wrapping the end of this smaller pipe, placed through the "T" to provide a small amount of sealing function on the end of the drain pipe.The clog instantly, and violently cleared. My condensate line drains into the drain pipe of a bathroom sink drain. The force of the clog clearing pressure sprayed back material back up and out of the sink. This caused a bit of unexpected cleanup. I should have closed the stopper on the sink to avoid that. Otherwise, this was a very easy fix.