TERRO Drain Insect Killer
Best drain treatment for homeowners battling persistent sink and pipe pests.
This expanding foam treatment is the most effective way to stop drain-dwelling pests at the source. By coating the entire pipe interior, it reaches the breeding grounds that liquid cleaners miss. It’s a slightly more involved process than pouring a gel, but the long-term protection against flies and roaches is worth the extra effort.
$19.99
at
D&B Supply
More Drain Insect Killer options
Who it's for
- Homeowners struggling with persistent drain fly or gnat infestations
- Families prioritizing non-toxic, pet-friendly pest control solutions
- Property owners concerned about harsh chemicals damaging older plumbing
Who should skip it
- People dealing with general household pests outside of drains
- Users needing an immediate knockdown of flying insects
- Busy individuals unable to commit to a multi-day treatment schedule
Performance breakdown
Coverage Efficiency
Expanding dry foam coats pipe walls where liquids simply slide past.
Lifecycle Disruption
Triple growth regulators effectively halt development across all insect life stages.
Application Precision
Included extension tube allows for targeted treatment in tight, hard-to-reach plumbing.
Safety Compatibility
Non-corrosive formula ensures peace of mind for all standard pipe materials.
Residual Protection
Three months of active defense keeps drains clear long after application.
User Experience
Low odor profile makes indoor treatment significantly less intrusive than chemical alternatives.
Key Specs
Model
T590
Container Size
8 oz
Formulation
Dry foam
Active Ingredients
(S)-Hydroprene, Novaluron, Pyriproxyfen
Application Method
Aerosol spray with extension tube
Target Pests
Drain flies, fruit flies, house flies, roaches
Application Frequency
Every 2 to 4 weeks
Usage
Safe for all pipe types
Know before you buy
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Ask Metto anything about the TERRO Drain Insect Killer before you decide.
