Drain Guns & Kits
CO2-powered drain guns clear AC condensate lines in seconds — no shop vac, no chemicals, no mess. A quick blast of compressed CO2 pushes the clog straight out the line. It's the standard service tool for HVAC techs on a call.
What you need
- A drain gun (the tool that holds and fires the cartridge)
- 16g threaded CO2 cartridges to power it — see CO2 Cartridges
- For long runs or stubborn clogs, step up to a 45g cartridge for roughly 3× the gas per shot
For service techs
One 16g cartridge clears a typical 3/8″–1″ line in a shot or two. Crews running multiple calls a day buy cartridges by the case — request bulk pricing. New to it? Our guide on clearing an AC drain line walks through it step by step.
