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Sweet Air-Charcoal Vent Filter

Score: 3.29. Votes: 62
  • $27.50
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The Original Sweet Air Vent Stack Filter

If your vent stack has foul odors the Sweet Air Filter will solve your problem, guaranteed.

Stop foul odors from invading your backyards and open windows. This is your answer to eliminate septic odors. The activated carbon will filter foul air which flows through house vents each time a sink, shower, dishwasher, or bathtub is drained, or when a toilet is flushed.

Don't be fooled by imitators - these are inexpensive and can be easily installed on existing vents. Designed for use on 3" or 4" sch40 vent pipe, can easily be adapted for use with smaller diameter vent pipes with inexpensive reducing fittings from your local hardware store. The activated carbon will last several years, actual life of the pellets will vary based on the applications. 


  • Easy to install
  • Twist top for easy maintenance
  • Cost effective
  • Solvent weld connection
  • Fits existing 3" or 4" sch40 piping
  • No more offensive odors
  • No more spoiled patio parties
  • No more foul air drifting into open windows

**When measuring your pipe size be sure to measure the inside diameter (I.D.) of the pipe.  

Customer reviews
Average rating:

Score: 3.29. Votes: 62
Rating of votes (62)
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  • Dave
    Mar 30, 2015, 09:16
    Since I put the Sweet Air vents on my two stacks, I haven't smelled the septic tank gases at all.  They are well worth buying. They just slipped right on the 4 inch pipes and fit tight without using glue.  Got a 51mph wind the day after I put them on and they didn't even move.  I will have to take them off in the winter for the moisture along with the 40 below weather so gluing is not an option.