Best Drain Fly Killer

Peter | 28-12-2025

With so many Best Drain Fly Killer brands on the market – from prominent names like Terro,Green Gobbler,Eco Strong,Accelerator by Dr. Pooper,Rockwell Labs to smaller manufacturers – making the right choice can feel overwhelming. But we’re here to help simplify your search for the best product.

We extensively tested and evaluated dozens of top-rated Best Drain Fly Killer across various price points, spending over 100 hours comparing the contenders side-by-side. Based on our in-depth first-hand research, we compiled this list of stand-out Best Drain Fly Killer to consider. Our top recommendation is Terro Best Drain Fly Killer for its uncompromising quality and performance.

Below you’ll discover more of our favorite Best Drain Fly Killer picks. And be sure to consult our buying guide for expert insights on selecting the ideal product for your individual needs and budget. With us guiding your decision, you can shop confidently knowing you’ve chosen an exceptional Best Drain Fly Killer you’ll truly love.

Editor's Choice
Green Gobbler Fruit Fly Goodbye Gel Drain Treatment | Killer Flies & Eliminator (1 Gallon)
Green Gobbler Fruit Fly Goodbye Gel Drain Treatment | Killer Flies & Eliminator (1 Gallon)
Premium Pick
Fruit Fly Drain Treatment | Drain Fly Eliminator | Eliminates Gnats, Sewer Flies and More - Works in
Fruit Fly Drain Treatment | Drain Fly Eliminator | Eliminates Gnats, Sewer Flies and More - Works in
Budget Pick
Drain Fly Killer Powder – Eliminates Drain Flies & Sewer Flies in Drains, Sinks, Showers –
Drain Fly Killer Powder – Eliminates Drain Flies & Sewer Flies in Drains, Sinks, Showers –

Top 10 Best Drain Fly Killer

We researched and compared the top products in the Best Drain Fly Killer category to provide you with these recommendations.

1. TERRO Drain Insect Killer - T590 Drain Fly Killer Spray - Foam Treatment for Fruit Flies, House

  • Leave the fruit fly drain treatment in the drain until the foam fully dissipates
  • Extension tube allows for precise application of TERRO Drain Insect Killer Foam
  • BREAKS THE LIFE CYCLE of drain flies, fruit flies, house flies, and roaches with drain flies killer
  • ELIMINATES INFESTATIONS AND PREVENTS NEW ONES Use as drain flies eliminator to stop active insects and block future invasions
  • This fly spray can be used on all types of pipes

2. Green Gobbler Fruit Fly Goodbye Gel Drain Treatment | Killer Flies & Eliminator (1 Gallon)

Green Gobbler Fruit Fly Goodbye Gel Drain Treatment | Killer Flies & Eliminator (1 Gallon)
9.5

Green Gobbler

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  • KILL FRUIT, DRAIN & SEWER FLIES: Get rid of the fly infestation and get back to enjoying your space. Green Gobbler's thick gel formula clings to pipes to eliminate annoying drain fly infestations. It kills fruit flies, drain flies and sewer flies.
  • PERFECT FOR HOMES & BUSINESSES: Green Gobbler is perfect for homes, hotels, restaurants, bars and anywhere with a fruit, drain, or sewer fly problem. It can treat garbage disposals, floor drains, kitchen sinks, bathrooms, shower drains and more.
  • EASY TO USE: Simply pour 8 ounces into your problem drain. This bottle uses anti-glug technology to help reduce splashing and provides up to 16 drain treatments. For best results, we recommend using product at night or during lowest time of use. Repeat daily until desired results are achieved.
  • MADE WITH CITRONELLA & CINNAMON: Our formula contains natural Citronella Oil and Cinnamon Oil to repel flies from your drain.
  • GREEN GOBBLER GUARANTEE: Green Gobbler cares about its customers. We take pride in developing innovative & effective products for your home or business. If for any reason you are unsatisfied, please contact us. We offer a money-back guarantee within 30 days of purchase.

3. Fruit Fly Drain Treatment | Drain Fly Eliminator | Eliminates Gnats, Sewer Flies and More - Works in

Fruit Fly Drain Treatment | Drain Fly Eliminator | Eliminates Gnats, Sewer Flies and More - Works in
9.1

Eco Strong

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  • A Natural Fruit Fly Solution: Our non-toxic gel formula is safe for use around food and anywhere in the home, kitchen, bar, or restaurant.
  • Drain Flies, Sewer Flies, Gnats, or Fruit Flies, any flies like to be in drain scum found in drains, pipes, or garbage disposals. This natural formula cleans out the scum from the drains, and it is safe for your plumbing.
  • Home & commercial use: Our natural gel contains additional scum-busting properties, making this the most effective solution. Pour into a drain; this fast-acting treatment breaks up and digests drain scum.
  • Occasional use of this gel treatment will keep your drains odor and scum free. By preventing the buildup of organic scum, you remove the risk of another problem.
  • What to Expect: Some users commented that after the first treatment, they saw more flies. This is to be expected and means the product is working. By removing the drain scum, the flies leave. Please don't give up. Continue to treat as directed. You will see a decrease over the next few days or so.

4. Drain Fly Killer Powder – Eliminates Drain Flies & Sewer Flies in Drains, Sinks, Showers –

Drain Fly Killer Powder – Eliminates Drain Flies & Sewer Flies in Drains, Sinks, Showers –
8.9

Accelerator By Dr. Pooper

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  • Targets and eliminates these common household pests in sinks, showers, floor drains, and garbage disposals. Disrupts the fly lifecycle to stop infestations before they spread.
  • Thick, expanding foam reaches deep into drains to dissolve organic buildup and destroy hidden breeding groundsthe root cause of recurring drain fly problems.
  • Gentle on pipes, tough on pests. This powder contains no harsh chemicals, making it ideal for homes with septic systems, older plumbing, or sensitive drain lines.
  • Each pack provides four complete treatments with 16 individual doses. Long-lasting protection for kitchens, bathrooms, utility rooms, and commercial spaces.
  • Manufactured to high safety and quality standards in the United States. Dependable results from a U.S.-based brand you can rely on.

5. Rockwell Labs IBDC032 Invade Bio Drain Gel-1 Qt

Rockwell Labs IBDC032 Invade Bio Drain Gel-1 Qt
8.7

Rockwell Labs

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  • 4 oz. per drain. 1 quart bottle (8 applications)
  • Microbes and Citrus Oil
  • This product is to be used specifically for drains but can also be used to eliminate sugar snakes in soda fountain drip trays. It is also safe and effective to use in mop buckets and trash chutes and urinals.
  • Package Dimensions: 4.495 L x 25.603 H x 8.509 W (centimeters)

6. TERRO Fruit Fly Traps for Indoors (4 Pack) + 180 Days of Lure Supply - T2503SR - Lure and Kill

  • FAST-ACTING ELIMINATION: Notice a dramatic decrease in fruit flies within a few days with these indoor fly traps for your home, containing a fast-acting anti fruit fly trap lure
  • LONG-LASTING PROTECTION: Each ready-to-use, non-staining TERRO fruit fly lure offers up to 45 days of effective trapping, making it a great indoor fruit fly killer. Comes with 180 days worth of lure supply
  • DISCREET AND ATTRACTIVE DESIGN: The apple-shaped anti fruit fly trap design of this indoor fly trap blends in with the fruits these pests love, keeping unsightly fruit fly populations down without attracting attention
  • EASY MONITORING: This fruit fly catcher features built-in windows to allow for at-a-glance monitoring of the lure levels and catches
  • TARGET BREEDING AREAS: These indoor fruit fly traps are most effective when placed near fruit bowls, trash cans, and counters to control fruit fly breeding locations

7. InVade Bio Drain 1 Gallon (Original Version)

InVade Bio Drain 1 Gallon (Original Version)
8.3

Rockwell Labs

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  • Microbes and Citrus Oil
  • This product is to be used specifically for drains but can also be used to eliminate sugar snakes in soda fountain drip trays. It is also safe and effective to use in mop buckets and trash chutes and urinals.
  • 4 oz per drain

8. Natural Elements Fruit Fly Killer | Drain Flies, Gnats, Flying Ants | Home & Commercial Use |

Natural Elements Fruit Fly Killer | Drain Flies, Gnats, Flying Ants | Home & Commercial Use |
8

Natural Elements

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  • Eliminate Fruit Flies, Period: Don't tolerate infestations. Our thick, citronella-infused gel immediately kills flies upon contact, giving you an instant, lasting defense against winged nuisances.
  • Engineered with Precision, Natural Ingredients: Achieve commercial-grade results without the chemicals. Utilizing highly-concentrated citronella, this gel tackles even the toughest fly populations while keeping your space fresh.
  • Universal Compatibility, Targeted Impact: From sinks to disposals, to commercial drains, this gel is the all-in-one answer. Created for universal drain compatibility, no matter the pipe material or construction.
  • Versatile: From Homes to Five-Star Establishments: Exceptional for household drains, yet robust enough for commercial settings like restaurants, hotels, and grocery stores. If you have a drain, we have your fly solution.
  • Uncompromising Safety Standards: Created for both effectiveness and peace of mind. Our gel is rigorously lab-tested to ensure it's non-toxic, biodegradable, and food-safe.
  • 100% Satisfaction Money-Back Guarantee: If you're not completely satisfied with our commercial-grade formula, we'll refund your money, no questions asked. Your satisfaction is our priority.

9. Fruit Fly Drain Treatment | Drain Fly Eliminator | All-Natural, Eliminates Gnats, Sewer Flies and

Fruit Fly Drain Treatment | Drain Fly Eliminator | All-Natural, Eliminates Gnats, Sewer Flies and
7.9

Eco Strong

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  • Drain Flies, Sewer Flies, Gnats, or Fruit Flies, any flies that live and breed in drains, pipes, or garbage disposals will be evicated by our all-natural formula; And it's safe for use in any plumbing
  • A Natural Fruit Fly Eliminator: Our non-toxic gel formula is safe for use around food and anywhere in the home, kitchen, bar, or restaurant
  • Home & commercial use Our all-natural gel contains additional scum-busting properties making this the most effective solution; Pour into a drain; this fast-acting treatment breaks up and digests drain scum
  • Occasional use of this gel treatment will keep your drains odor and scum free; By preventing the buildup of organic scum, you eliminate the risk of another problem

10. Fruit Fly Drain Treatment | Drain Fly Eliminator | Eliminates Gnats, Sewer Flies and More - Works in

Fruit Fly Drain Treatment | Drain Fly Eliminator | Eliminates Gnats, Sewer Flies and More - Works in
7.7

Eco Strong

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  • A Natural Fruit Fly Solution: Our non-toxic gel formula is safe for use around food and anywhere in the home, kitchen, bar, or restaurant.
  • Drain Flies, Sewer Flies, Gnats, or Fruit Flies, any flies like to be in drain scum found in drains, pipes, or garbage disposals. This natural formula cleans out the scum from the drains, and it is safe for your plumbing.
  • Home & commercial use: Our natural gel contains additional scum-busting properties, making this the most effective solution. Pour into a drain; this fast-acting treatment breaks up and digests drain scum.
  • Occasional use of this gel treatment will keep your drains odor and scum free. By preventing the buildup of organic scum, you remove the risk of another problem.
  • What to Expect: Some users commented that after the first treatment, they saw more flies. This is to be expected and means the product is working. By removing the drain scum, the flies leave. Please don't give up. Continue to treat as directed. You will see a decrease over the next few days or so.

Peter

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