---
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: "₩52036"
currency: KRW
in_stock: true
reviews_count: 9
category: "Terro"
url: https://www.desertcart.kr/products/718087360-terro-drain-insect-killer-t590-drain-fly-killer-spray-foam
store_origin: KR
region: South Korea
---

# 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:** ₩52036
**Availability:** ✅ In Stock

## Summary

> 🚫🐜 Stop flies dead in their tracks — foam your drains, own your 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?** ₩52036 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.kr](https://www.desertcart.kr/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

- • **Prevent & Eliminate:** Kills active pests and blocks future invasions with repeatable treatments every 2-4 weeks.
- • **Life Cycle Disruptor:** Targets immature flies and roaches at the pupal stage to stop infestations before they start.
- • **Multi-Pipe Compatible:** Safe and effective on all pipe types, perfect for kitchens, bathrooms, and utility sinks.
- • **Precision Application:** Fold-up extension tube delivers foam exactly where larvae hide, maximizing effectiveness.
- • **360° Dry Foam Coverage:** Ensures no drain nook is missed with visible, expanding foam for total infestation control.

## Overview

TERRO Drain Insect Killer uses a powerful dry foam with three insect growth regulators to deliver 360-degree coverage inside drains, breaking the life cycle of drain flies, fruit flies, house flies, and roaches. Its precision extension tube ensures targeted application in all pipe types, effectively eliminating infestations and preventing new ones with repeat treatments every few weeks.

## 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: Love to see a product that really works! - I had drain flies for over a year and could not get rid of them with drano, baking soda/vinegar, or even normal clorox bleach cleaner. I put this Terro foam treatment in the drain and saw immediate results. I had one drain fly the next day and haven't seen them since and its been a month now. One treatment and they were gone - this stuff really works!

## 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 | #9,310 in Health & Household ( See Top 100 in Health & Household ) #6 in Indoor Insect & Pest Control Sprays |
| Brand | Terro |
| Customer Reviews | 4.2 4.2 out of 5 stars (892) |
| 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:** 0.7 Pounds
- **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)
![TERRO Drain Insect Killer - T590 Drain Fly Killer Spray - Foam Treatment for Fruit Flies, House Flies, and Cockroaches - Image 2](https://m.media-amazon.com/images/I/71HLvbGHWOL.jpg)
![TERRO Drain Insect Killer - T590 Drain Fly Killer Spray - Foam Treatment for Fruit Flies, House Flies, and Cockroaches - Image 3](https://m.media-amazon.com/images/I/81G1kG3vkKL.jpg)
![TERRO Drain Insect Killer - T590 Drain Fly Killer Spray - Foam Treatment for Fruit Flies, House Flies, and Cockroaches - Image 4](https://m.media-amazon.com/images/I/81Z7moGW2YL.jpg)
![TERRO Drain Insect Killer - T590 Drain Fly Killer Spray - Foam Treatment for Fruit Flies, House Flies, and Cockroaches - Image 5](https://m.media-amazon.com/images/I/81jBh73gy-L.jpg)

## Available Options

This product comes in different **Size** options.

## 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.

### ⭐⭐⭐⭐⭐ Love to see a product that really works!
*by R***R on March 5, 2026*

I had drain flies for over a year and could not get rid of them with drano, baking soda/vinegar, or even normal clorox bleach cleaner. I put this Terro foam treatment in the drain and saw immediate results. I had one drain fly the next day and haven't seen them since and its been a month now. One treatment and they were gone - this stuff really works!

### ⭐⭐⭐⭐ 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.

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.kr/products/718087360-terro-drain-insect-killer-t590-drain-fly-killer-spray-foam](https://www.desertcart.kr/products/718087360-terro-drain-insect-killer-t590-drain-fly-killer-spray-foam)

---

*Product available on Desertcart South Korea*
*Store origin: KR*
*Last updated: 2026-03-08*