Diversitech GG-1 Drain Gun for A/C Condensate Lines, Charcoal Grey

Bought 2 units, both leaked out the entire cylinder in less than a minute. The original version was far superior. Not recommended.

Just what I needed

I used this to clear the plugage between the clean out and the air handler of my A/C system. You must use their proprietary CO2 cartridges though. I have a bunch on hand, but they would not fit this.

This drain clog gun works good for me. I purchased this item along with the 16 g cartridges that you have to purchase separately back in 2021 and used it several times after ac stopped running due to drain line being clogged and tripping float switch. This product saves me the hassle of using portable air compressor to blow out the condensation drain line.

My AC condensate constantly gets clogged. Traditionally, I would have a service call come out twice a year to clean out and treat. I've tried condensate cleaner, white vinegar, and hot water with limited success. This, however, cleaned out the first try! Now onto the bad things about this. First, this is designed for 16g CO2 cartridges. I have a bunch of 12g Crossman CO2 cartridges for BB guns. I wish I had known that before buying. Instead of buying more expensive 16g cartridges, I've 3D-printed a 12-16g adapter for this. That was a bit of an annoyance as I was without AC due to a pretty bad clog and paid to have this delivered early AM. But alas, with the nozzle end jammed into the condensate pipe, the first use had a nice cork pop at the drain end, followed by nasty crud and built-up water. Once cleared out, my AC system has been running without trouble! As 16g CO2 cartridges are typically double the price of 12g, that may be a disadvantage. However, the additional gas might help if the 12g doesn't do the job. Overall, this is a great tool and will save me a lot of headaches and money in the long run!