---
product_id: 344377297
title: "AA GKM24W Internal UV for Aquariums up to 120Ga,Black"
brand: "aa"
price: "¥37311"
currency: JPY
in_stock: true
reviews_count: 8
url: https://www.desertcart.jp/products/344377297-aa-gkm24w-internal-uv-for-aquariums-up-to-120ga-black
store_origin: JP
region: Japan
---

# 120GPH Flow Rate 6-9 Month Bulb Life 5-Min Install AA GKM24W Internal UV for Aquariums up to 120Ga,Black

**Brand:** aa
**Price:** ¥37311
**Availability:** ✅ In Stock

## Summary

> 🌊 Dive into Clarity with the GKM24W!

## Quick Answers

- **What is this?** AA GKM24W Internal UV for Aquariums up to 120Ga,Black by aa
- **How much does it cost?** ¥37311 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/344377297-aa-gkm24w-internal-uv-for-aquariums-up-to-120ga-black)

## Best For

- aa enthusiasts

## Why This Product

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

## Key Features

- • **Complete Package:** Includes everything you need for a seamless setup.
- • **Crystal Clear Waters:** Transform your aquarium into a stunning aquatic masterpiece.
- • **Effortless Installation:** Set up in just 5 minutes—no tools required!
- • **Energy Efficient Design:** Run only when needed to extend bulb life.
- • **Smart Maintenance Alerts:** LED signals for easy UV bulb replacement.

## Overview

The AAGKM24W Internal UV System is designed for aquariums up to 120 gallons, featuring a powerful 120 GPH pump and a sealed UV bulb that lasts 6 to 9 months. With a quick 5-minute installation and no tools required, this system ensures crystal clear water while minimizing maintenance. The included LED alerts you when it's time to replace the bulb, making it a hassle-free addition to your aquatic environment.

## Description

GKM24W Internal UV for Aquariums up to 120Ga,Black

## Features

- The GKM24W Internal UV System with Power Head is for aquariums up to 120 gallons. The GKM24W allows water flow in direct contact with the UV lamp, making it extremely efficient. Keep your aquarium crystal clear & reduce water changes.
- It includes the pump and takes only 5 minutes to install (no tools required). The UV lamp and pump are submersed completely in the aquarium and are attached to the inside of the aquarium with the included suction cups.
- 4" x 4" x 17" long. LED signals need for a UV Bulb replacement, easy change without tools. UV bulbs lasts for 6 to 9 months, assuming constant use. Sealed UV bulb design - avoid UV housing deteriorate, fresh with every bulb change.
- Once your water is clear, there is no need to keep your GKM24W turned on 24/7. This will help increase the life of your 24 Watt UV lamp. Pump Flow Rate: 120 GPH. UL listed. EPA Est # 093568.
- Included components: Water pump, Sealed UV bulb, Control Box, Adaptor. Comes with UL plug, only suitable for US market.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Item Weight | 1.2 Kilograms |
| Liquid Volume | 120 Gallons |
| Allergen Information | Allergen-Free |
| Target Species | Fish |

## Product Details

- **Brand:** AA
- **Liquid Volume:** 120 Gallons
- **Item Weight:** 1.2 Kilograms
- **Item Form:** Sealed UV bulb
- **Target Species:** Fish

## Images

![AA GKM24W Internal UV for Aquariums up to 120Ga,Black - Image 1](https://m.media-amazon.com/images/I/71T5rLkzvoL.jpg)

## Questions & Answers

**Q: How long is the electrical cord?**
A: The cord is very long comes in two parts one attaches into another

**Q: I have a 70 gallon freshwater tank, powered by a mag9.5, which puts out anout 950gph. Is this too powerful for this product?**
A: This product is up to 120 galons and the down sice is only until 50 galons so this product will work for your tank. Once your water is clear, there is no need to keep your GKM24W turned on 24/7. This will help increase the life of your 24 Watt UV lamp.
Hope this help you

**Q: how effective is this for dinos ,cyano green hair algae in a 36 gallon reef tank?**
A: I have not had those specific issues but suspect it would be very helpful

**Q: Where is the light indicating that it's working or not?**
A: It is on the transformer I believe it’s the green light

## Customer Reviews

### ⭐⭐⭐⭐⭐ Ideal unit
*by A***. on September 5, 2022*

Before I purchased the Green Killing Machine I purchased fluval's in-line sterilizer. When using that product I had an outbreak of flukes, which I fought for months. I had to do a major filter tear down on my sixty gallon display tank.But thankfully, that forced me to do more research on uv sterilizers. Apparently most don't cut it, especially for parasite control. Live Aquaria has a great uv sterilizer chart that goes over flow rates and wattages that are most appropriate for your tank. (I included a screenshot of their chart, but the information is also worth a read)This particular model meets my requirements. It's flow doesn't exceed 150gph and it's wattage is high enough to control parasite populations in my tank.The only bummer about the unit at all is that it's large. And it has two ballast boxes. But in a way, that gives me confidence in the unit. Definitely a no bs system. And technically I could have gone with a smaller model (I have a sixty gallon and could probably have used the smaller model) but in the case of uv sterilizers, bigger is better.Installation is straightforward. I don't recommend turning it on and off rapidly -- when you turn it on leave it on for at least a few minutes before turning it off and vise versa (that goes for all advanced lighting systems and will help prevent a blown blub).All in all, I'm grateful that this company is producing an affordable uv sterilizer that's actually robust enough to kill algae and parasites. And I really appreciate not having to touch bulbs ever again.

### ⭐⭐⭐⭐⭐ So far I’d say GREAT
*by C***Y on January 7, 2024*

The media could not be loaded. It’s early, but I never thought I had water clarity issues but wow, this really clears out the water column! I bought to kill any potential bad free floating parasites or algae. But the clarity is amazing after just running over night. I have it in a saltwater Waterbox Infinia Frag 125 gal. I placed it in the sump, in my skimmer tank laying down. Only modification, I put a 1/2” hose from the output pump to run directly to my return pump tank. I don’t want to sterilize and put right back in circulation of same tank, I want to sterilize and pump direct back into my return. Hopefully it holds up, I plan to timer cycle it and not run 24/7 and I plan to maintenance clean the pump for longevity

### ⭐ DOES NOT WALL MOUNT
*by E***R on May 7, 2025*

Maybee im wrong but there is no indicator light to let you know if the bulb is even on or off way to many cords also if u need to replace the bulb its a whole plastic unit jus not a glass bulb seems to work if the bulb is actually working but with no indicator u won't know plus the cords and power blocks and splitters it comes with is absurd

## Frequently Bought Together

- AA GKM24W Internal UV for Aquariums up to 120Ga,Black
- AA GKM9W Internal UV for Aquariums up to 50Ga,Black
- MarineLand Magnum Polishing Internal Canister Filter, For aquariums Up To 97 Gallons, 10.5 IN (ML90770)

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-03-09*