---
product_id: 718087360
title: "TERRO Drain Insect Killer - T590 Drain Fly Killer Spray - Foam Treatment for Fruit Flies, House Flies, and Cockroaches"
brand: "terro"
price: "€ 32.30"
currency: EUR
in_stock: true
reviews_count: 9
category: "Terro"
url: https://www.desertcart.it/products/718087360-terro-drain-insect-killer-t590-drain-fly-killer-spray-foam
store_origin: IT
region: Italy
---

# Precision extension tube Breaks insect life cycle 360° dry foam coverage TERRO Drain Insect Killer - T590 Drain Fly Killer Spray - Foam Treatment for Fruit Flies, House Flies, and Cockroaches

**Brand:** terro
**Price:** € 32.30
**Availability:** ✅ In Stock

## Summary

> 🚫🐜 Foam your drains, kill the flies, own the space!

## Quick Answers

- **What is this?** TERRO Drain Insect Killer - T590 Drain Fly Killer Spray - Foam Treatment for Fruit Flies, House Flies, and Cockroaches by terro
- **How much does it cost?** € 32.30 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.it](https://www.desertcart.it/products/718087360-terro-drain-insect-killer-t590-drain-fly-killer-spray-foam)

## Best For

- terro enthusiasts

## Why This Product

- Trusted terro brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Cycle Breaker:** Contains three Insect Growth Regulators that disrupt and stop drain fly, fruit fly, and roach reproduction.
- • **Infestation Armor:** Eliminates active pests and prevents future invasions, keeping your space fly-free and stress-free.
- • **Pinpoint Precision:** Fold-up extension tube targets hard-to-reach pipes for maximum impact where pests breed.
- • **Total Drain Domination:** 360-degree dry foam ensures no spot is missed, delivering full-contact insect elimination.
- • **Universal Pipe Compatibility:** Safe and effective on all pipe types, making it the go-to solution for any drain setup.

## Overview

TERRO Drain Insect Killer T590 is a powerful dry foam spray formulated with three Insect Growth Regulators to deliver 360-degree coverage inside drains. It precisely targets and breaks the life cycle of drain flies, fruit flies, house flies, and roaches, eliminating infestations and preventing new ones. The included extension tube allows for accurate application in all pipe types, making it an essential tool for maintaining a pest-free, hygienic environment.

## Description

TERRO Drain Insect Killer is a powerful solution designed with a dry foam formulation that contains three Insect Growth Regulators (IGRs). This unique formulation reduces the chances of missed areas and provides full-contact, 360-degree coverage, making it highly effective for stopping and preventing infestations. The IGRs in TERRO Drain Insect Killer disrupt the normal development of immature drain flies, fruit flies, and roaches. Additionally, it disrupts the normal life cycle of drain flies and fruit flies, effectively eliminating them during their pupal stage, thereby breaking the cycle of infestation. To effectively use TERRO Drain Insect Killer, apply the foam into and around the downspout and catch basin to cover the entire area. When treating For a double-basin sink, be sure to apply it in both drains. Use the convenient fold-up extension tube for precise application into the pipes. Thoroughly coating these areas is crucial as fly larvae tend to develop in the scum buildup on the sides of drainpipes. The visible foam formulation ensures that no areas are missed during application. This product can be used on all types of pipes. Depending on the severity of the infestation, it's recommended to repeat applications every 2 to 4 weeks to kill fruit flies and other drain insects effectively.

Review: Works but may need a few applications - This stuff works and I am pleased with the out come but it did take three applications. I live in an old house, about 100 years old and the gnat's seem to appear every summer. I also live by a lake so I don't know if that has anything to do with it. I would say it was an infestation, I couldn't eat without them buzzing around me. I am one of those people that is a bug lands in my food, it's now the dogs food so these things were maddening. (And yes, I know it's irrational to stop eating your food just because a tiny bug lands on it but gross's me out and that's the way it is.) Forget about drinking red wine because they love it and land in it immediately. In any event, the gnats literally drive me crazy. I hate them! I have tried everything to get rid of them. The vinegar, soap, water traps. The lights with the sticky cards. Anything I could find. These traps catch the gnats but they don't get rid of the problem. I saw this and thought I would give it a try. I ordered two cans to start with because I have three full bathrooms, a utility sink, plus the kitchen sink. The first time, I performed the application at night on July 7th and then went to bed. I used both full cans, which was mainly because I was figuring out how to use it properly and I put almost a full can in the garbage disposal. I would say in the next couple of days you could see a significant reduction in the number of gnats and I found several in my bathrooms dead. I figured it would take a couple of applications due to the other reviews that I read. Within about four days, I saw them beginning to increase again. I ordered two more cans and applied about 1.5 of them the night of July 12th. That is 5 days following the first application. Following that application, there was another significant reduction in the gnats and I was still finding dead gnats on my bathroom floors. After the first two applications there was a significant improvement in the quality of my life. Just chipping away at killing these gnats and I was/am determined to rid my house of these pests! Ordered two more cans. I was leaving for the weekend so I thought a perfect time for another application and then it would be able to sit for a couple of days. Applied another ~1.5 cans on Friday afternoon around 3:00pm on July 18th. Returned Sunday July 20th early evening. To my shear delight, I did not see any gnats! Monday, I saw one gnat. Tuesday, I saw one gnat. Wednesday I did not see any gnats. It is now Thursday morning and I have not seen any gnats. I am hoping that is the last of them but I still have enough product for another application if it is needed. So, in summary, it has taken me close to four cans to fully eliminate them over the course of 16 days. I ordered a total of 6 cans at a price tag of $95.82+tax so over $100 in total, so not cheap. Also, pretty sure the stuff is toxic because it says something about hazmat on the label for shipping. Hope this helps.
Review: Drain Insect Killer - I have already recommended this to others. I prefer natural insect control so spraying even a “natural” product means I was at the end of that rope. The little flies that are inevitably present sometimes as I bring in harvests and garden critters were unusually bad. Vinegar and baking soda, and boiled water was just not ending the infestation (ok, it was one sink). What I realized is the bugs were going into a tiny opening into an enclosed space I couldn’t get to. This spray got into the space and the problem is solved. I sprayed the drain at the same time and I saw it expand quickly. Nothing offensive about the spray. It rinsed away easily. I’m keeping this on hand.

## Features

- 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

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0F2VX1PRC |
| Active Ingredients | (S)-Hydroprene (0.36%); Novaluron (0.02%); Pyriproxyfen (0.02%); Other ingredients (99.60%) |
| Best Sellers Rank | #11,517 in Health & Household ( See Top 100 in Health & Household ) #7 in Indoor Insect & Pest Control Sprays |
| Brand | Terro |
| Customer Reviews | 4.2 4.2 out of 5 stars (882) |
| Item Form | Dry Foam |
| Item Weight | 11.2 ounces |
| Item model number | T590 |
| Manufacturer | Woodstream Corporation |
| Package Dimensions | 7.91 x 2.44 x 2.44 inches |
| Specification Met | EPA |
| Target Species | Insects |
| UPC | 070923363483 |

## Product Details

- **Active Ingredients:** (S)-Hydroprene (0.36%); Novaluron (0.02%); Pyriproxyfen (0.02%); Other ingredients (99.60%)
- **Brand:** Terro
- **Item Form:** Dry Foam
- **Item Weight:** 11.2 ounces
- **Specification Met:** EPA

## Images

![TERRO Drain Insect Killer - T590 Drain Fly Killer Spray - Foam Treatment for Fruit Flies, House Flies, and Cockroaches - Image 1](https://m.media-amazon.com/images/I/71Xog6OAlJL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Works but may need a few applications
*by I***X on July 24, 2025*

This stuff works and I am pleased with the out come but it did take three applications. I live in an old house, about 100 years old and the gnat's seem to appear every summer. I also live by a lake so I don't know if that has anything to do with it. I would say it was an infestation, I couldn't eat without them buzzing around me. I am one of those people that is a bug lands in my food, it's now the dogs food so these things were maddening. (And yes, I know it's irrational to stop eating your food just because a tiny bug lands on it but gross's me out and that's the way it is.) Forget about drinking red wine because they love it and land in it immediately. In any event, the gnats literally drive me crazy. I hate them! I have tried everything to get rid of them. The vinegar, soap, water traps. The lights with the sticky cards. Anything I could find. These traps catch the gnats but they don't get rid of the problem. I saw this and thought I would give it a try. I ordered two cans to start with because I have three full bathrooms, a utility sink, plus the kitchen sink. The first time, I performed the application at night on July 7th and then went to bed. I used both full cans, which was mainly because I was figuring out how to use it properly and I put almost a full can in the garbage disposal. I would say in the next couple of days you could see a significant reduction in the number of gnats and I found several in my bathrooms dead. I figured it would take a couple of applications due to the other reviews that I read. Within about four days, I saw them beginning to increase again. I ordered two more cans and applied about 1.5 of them the night of July 12th. That is 5 days following the first application. Following that application, there was another significant reduction in the gnats and I was still finding dead gnats on my bathroom floors. After the first two applications there was a significant improvement in the quality of my life. Just chipping away at killing these gnats and I was/am determined to rid my house of these pests! Ordered two more cans. I was leaving for the weekend so I thought a perfect time for another application and then it would be able to sit for a couple of days. Applied another ~1.5 cans on Friday afternoon around 3:00pm on July 18th. Returned Sunday July 20th early evening. To my shear delight, I did not see any gnats! Monday, I saw one gnat. Tuesday, I saw one gnat. Wednesday I did not see any gnats. It is now Thursday morning and I have not seen any gnats. I am hoping that is the last of them but I still have enough product for another application if it is needed. So, in summary, it has taken me close to four cans to fully eliminate them over the course of 16 days. I ordered a total of 6 cans at a price tag of $95.82+tax so over $100 in total, so not cheap. Also, pretty sure the stuff is toxic because it says something about hazmat on the label for shipping. Hope this helps.

### ⭐⭐⭐⭐⭐ Drain Insect Killer
*by C***T on January 15, 2026*

I have already recommended this to others. I prefer natural insect control so spraying even a “natural” product means I was at the end of that rope. The little flies that are inevitably present sometimes as I bring in harvests and garden critters were unusually bad. Vinegar and baking soda, and boiled water was just not ending the infestation (ok, it was one sink). What I realized is the bugs were going into a tiny opening into an enclosed space I couldn’t get to. This spray got into the space and the problem is solved. I sprayed the drain at the same time and I saw it expand quickly. Nothing offensive about the spray. It rinsed away easily. I’m keeping this on hand.

### ⭐⭐⭐⭐ Good in combo with other products to rid of drain fly infestation
*by Y***S on February 13, 2026*

Nice foam and good to use to fill drain to help rid drain of drain flies but if you have a real serious infestation you will need this plus Green Gobbler for drain flies and Gentrol Complete EC3. This product weekly and the other 2 daily until 2 weeks after drain flies are gone. Zevo lights help too.

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*Product available on Desertcart Italy*
*Store origin: IT*
*Last updated: 2026-03-04*