---
product_id: 164711748
title: "Drain Fly & Fruit Fly Killer (128oz Gallon) | Eliminates Gross Fruit, Drain, Sewer & Gnat Infestations from Any Drain - Simple, Easy to Use - Sewer & Septic Safe"
brand: "natural armor"
price: "S$135"
currency: SGD
in_stock: true
reviews_count: 9
category: "Natural Armor"
url: https://www.desertcart.sg/products/164711748-drain-fly-and-fruit-fly-killer-128oz-gallon-eliminates-gross
store_origin: SG
region: Singapore
---

# Clings to all indoor drains 128oz commercial-strength gel Septic & plumbing safe formula Drain Fly & Fruit Fly Killer (128oz Gallon) | Eliminates Gross Fruit, Drain, Sewer & Gnat Infestations from Any Drain - Simple, Easy to Use - Sewer & Septic Safe

**Brand:** natural armor
**Price:** S$135
**Availability:** ✅ In Stock

## Summary

> 🛡️ Defend your drains with Natural Armor – because pests don’t get invited to your next meeting.

## Quick Answers

- **What is this?** Drain Fly & Fruit Fly Killer (128oz Gallon) | Eliminates Gross Fruit, Drain, Sewer & Gnat Infestations from Any Drain - Simple, Easy to Use - Sewer & Septic Safe by natural armor
- **How much does it cost?** S$135 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sg](https://www.desertcart.sg/products/164711748-drain-fly-and-fruit-fly-killer-128oz-gallon-eliminates-gross)

## Best For

- natural armor enthusiasts

## Why This Product

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

## Key Features

- • **Powerful Yet Safe:** Natural ingredients ensure effective pest control without harming septic systems or plumbing.
- • **Versatile Indoor Use:** Perfect for kitchen, bathroom, shower, floor, and utility drains in homes and commercial spaces.
- • **Trusted for Over a Decade:** Proven reliability with 10+ years of success in homes and businesses nationwide.
- • **Fast-Acting & Easy Application:** Noticeable results after just one treatment—simple pour-and-go solution for busy professionals.
- • **Target the Source, Not Just the Flies:** Thick gel formula clings to pipe walls, eliminating eggs and breeding sites for lasting control.

## Overview

Natural Armor Drain Fly & Fruit Fly Killer is a 128oz commercial-strength gel designed to eliminate drain flies, fruit flies, gnats, and sewer flies by targeting their breeding sites inside indoor drains. Its thick formula clings to pipe walls for long-lasting control, is safe for septic and plumbing systems, and is trusted by homeowners and businesses for over 10 years. Ideal for use in kitchens, bathrooms, and commercial facilities, it offers a fast, effective, and natural solution to persistent fly infestations.

## Description

desertcart.com: Natural Armor Drain Fly & Fruit Fly Killer (128oz Gallon) | Eliminates Gross Fruit, Drain, Sewer & Gnat Infestations from Any Drain - Simple, Easy to Use - Sewer & Septic Safe : Health & Household

Review: VERY EFFECTIVE!!!! - GREAT PRODUCT!!!!! Only product I will use because it works!! We see a difference with the FIRST application. I simply used a clear cup, measured & marked 8 ozs and went to work at night after all were sleep!!! Gotta pour boiling water first thing in the morning to rinse each drain but I did 3-5 treatments to rid the drain flies and gnats. YOU WILL SEE A BIG DIFFERENCE and customer service is GREAT! Scent is not bad at all. This is my go to product whenever the need arises!!!
Review: Worked Fast & Solved My Fruit Fly Problem - I bought this because my main bathroom had a full-on fruit fly problem, and it was honestly overwhelming especially when having visitors over. It was embarrassing and just gross. After using this drain gel a couple of times, I noticed a huge difference. Within a short time, the flies were completely gone. It was easy to use, and I like that it targets the source in the drain instead of just killing the flies you see flying around. It definitely did the job, and I’m so relieved I found something that actually works. Highly recommend if you’re dealing with the same issue.

## Features

- ELIMINATES DRAIN FLIES, FRUIT FLIES, GNATS & SEWER FLIES – Our commercial-strength drain treatment targets fly infestations where they begin. The thick gel formula clings to pipe walls to help eliminate eggs and breeding sites at the source for more effective, long-lasting control.
- COMMERCIAL STRENGTH GEL FORMULA – Designed for homes and commercial facilities, our thick gel coats drain walls longer than thin liquid treatments to maximize contact where fruit flies and drain flies live and breed.
- USE IN ANY INDOOR DRAIN – Ideal for kitchen sinks, bathroom sinks, garbage disposals, floor drains, shower drains and utility drains in homes, restaurants, bars, hotels, offices and other commercial facilities.
- SEPTIC & PLUMBING SAFE – Safe for drains, pipes, sewer lines and septic systems when used as directed. Made with natural ingredients and formulated to provide powerful drain fly control without harsh corrosive chemicals.
- TRUSTED FOR OVER 10 YEARS – For more than a decade, homeowners and commercial facilities have relied on Natural Armor products to help solve tough pest problems. Proudly made in the USA with premium ingredients and designed for simple, effective drain treatment.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07WQYQ9TV |
| Best Sellers Rank | #18,881 in Health & Household ( See Top 100 in Health & Household ) #127 in Indoor Insect & Pest Control |
| Brand | Natural Armor |
| Brand Name | Natural Armor |
| Customer Reviews | 4.0 out of 5 stars 4,954 Reviews |
| Item Form | Gel |
| Item Weight | 128 Ounces |
| Liquid Volume | 128 Fluid Ounces |
| Manufacturer | Natural Armor |
| Number of Items | 1 |
| Product Benefits | Kills Drain Fly |
| Scent | Unscented |
| State of Matter | Liquid |
| State of matter | Liquid |
| UPC | 787303670153 |
| Unit Count | 128.0 Fluid Ounces |

## Product Details

- **Brand:** Natural Armor
- **Item Form:** Gel
- **Item Weight:** 128 Ounces
- **Liquid Volume:** 128 Fluid Ounces
- **Target Species:** Insects

## Images

![Drain Fly & Fruit Fly Killer (128oz Gallon) | Eliminates Gross Fruit, Drain, Sewer & Gnat Infestations from Any Drain - Simple, Easy to Use - Sewer & Septic Safe - Image 1](https://m.media-amazon.com/images/I/711guMNORVL.jpg)

## Available Options

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

## Questions & Answers

**Q: Is this product safe for all types of drains?**
A: Yes, the gel is designed to be safe for use in most household and commercial drains, including kitchen sinks, bathroom sinks, and shower drains. It does not damage plumbing when used as directed.

**Q: How often should the product be applied?**
A: For best results, apply the gel daily for the first 5-7 days or until you see the infestation reducing significantly. For maintenance, you can use the product once a week to stop future infestations.

**Q: Does the product have a strong smell?**
A: The product has a slight citronella scent, which some users find pleasant. It is not overpowering and dissipates quickly after application.

**Q: How long does it take to see results?**
A: Results can vary depending on the severity. Most users report noticeable improvements within a few days of consistent application. It’s recommended to follow the usage instructions carefully and be patient, as multiple applications may be needed.

## Customer Reviews

### ⭐⭐⭐⭐⭐ VERY EFFECTIVE!!!!
*by P***A on July 4, 2026*

GREAT PRODUCT!!!!! Only product I will use because it works!! We see a difference with the FIRST application. I simply used a clear cup, measured & marked 8 ozs and went to work at night after all were sleep!!! Gotta pour boiling water first thing in the morning to rinse each drain but I did 3-5 treatments to rid the drain flies and gnats. YOU WILL SEE A BIG DIFFERENCE and customer service is GREAT! Scent is not bad at all. This is my go to product whenever the need arises!!!

### ⭐⭐⭐⭐⭐ Worked Fast & Solved My Fruit Fly Problem
*by J***R on February 21, 2026*

I bought this because my main bathroom had a full-on fruit fly problem, and it was honestly overwhelming especially when having visitors over. It was embarrassing and just gross. After using this drain gel a couple of times, I noticed a huge difference. Within a short time, the flies were completely gone. It was easy to use, and I like that it targets the source in the drain instead of just killing the flies you see flying around. It definitely did the job, and I’m so relieved I found something that actually works. Highly recommend if you’re dealing with the same issue.

### ⭐⭐⭐⭐ Works
*by D***A on May 31, 2026*

Worked! No funky smell & the irritating little monsters were gone within days. I had previously tried traps, blocking the drains & using baking soda & vinegar cleanses to no avail. I think this stuff is ridiculously expensive, but as a last resort I can say it works.

## Frequently Bought Together

- Fruit Fly & Drain Fly Killer - Simple Commercial Drain Gel Treatment – Eliminates Gross Fruit/Sewer Flies & Gnat Infestations from Any Drain. Fast & Easy - 1 Gallon (128 Ounces)
- Terro Fruit Fly Traps for Indoors (4 Pack) + 180 Days of Lure Supply
- TERRO Drain Insect Killer - T590 Drain Fly Killer - Foam Drain Treatment - Drain Treatment for Drain Flies, Fruit Flies, House Flies, and Roaches

---

## 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.sg/products/164711748-drain-fly-and-fruit-fly-killer-128oz-gallon-eliminates-gross](https://www.desertcart.sg/products/164711748-drain-fly-and-fruit-fly-killer-128oz-gallon-eliminates-gross)

---

*Product available on Desertcart Singapore*
*Store origin: SG*
*Last updated: 2026-07-26*