RedRock 16 Gram Unthreaded CO2 Cartridges for Gallo Drain Gun HVAC Drain Line Cleaner Tool (30 Pack)

I have a Rectorseal Lineshot drain cleaner to clear out AC condensate drain lines. But a dozen cartridges cost about what this brand charges for a box of 30. So gave them a try. They are a bit shorter, but they work fine. You have to screw the handle on the drain gun down all the way to get it to puncture, but it does fully puncture and dispense good. You could also drop a washer into the bottom of the handle to raise the cartridge up more if it didn’t screw down enough to puncture, but mine screwed in enough to puncture as-is. CO2 dispenses quickly and completely, and blows out line as good as original cartridges. See pictures. Original Rectorseal cartridge has the label on it, this product has no label. Punctures good, width is the same (drops into handle perfectly), nipple is shorter but diameter of nipple is the same. Will buy again when box of 30 runs out.

Not food grade but full pressure for a low price.

Great product to use in A/C drain line gun to clear the sludge out

These fit into the AC Drain line guns, good to keep some on hand

They do the job.

Used these Co2 cartridges from Red Rock and they delivered the solid punch needed to clean my A/C drain line. I have the DiversiTech GG-1 Charles Gallo Drain Gun for A/C Condensate Lines. These Co2 cartridges fit well and give the sudden release need to clean the drain.

Exactly as described and quick shipping

Have the Gallo gun for ac line, although asked for threaded received unthread, which caused a slight problem. problem fixed by dropping a washer in bottom of Gallo part & worked fine. Will purchase again.