RedRock HVAC Drain Gun

The RedRock A/C drain line condensate cleaner — a CO2-powered drain gun that clears clogged HVAC condensate lines in seconds. No chemicals, no water, no shop vac: one controlled burst of CO2 pushes the clog straight out.

Pick your model

• 16g Button and 16g Trigger — our standard guns, powered by 16g unthreaded CO2 cartridges
• 20g Button — a bigger burst for long or stubborn lines, powered by 20g unthreaded CO2 cartridges

Button and trigger fire the same way — it's just the trigger style. Choose your model above.

Which cartridge do I buy? (sold separately)

• 16g Button / 16g Trigger → 16g unthreaded CO2 cartridges
• 20g Button → 20g unthreaded CO2 cartridges

How it works: load the matching unthreaded CO2 cartridge, seat the gun on the drain line, and fire. Most residential lines clear in one or two shots.

New to drain guns? Read how to clear an AC drain line. Not sure which cartridge you need? Use the Cartridge Finder.