--- product_id: 344377297 title: "GKM24W" brand: "aa" price: "฿11798" currency: THB in_stock: true reviews_count: 13 category: "Aa" url: https://www.desertcart.co.th/products/344377297-gkm24w store_origin: TH region: Thailand --- # 24W powerful UV lamp 120 GPH pump flow rate 5-min tool-free install GKM24W **Brand:** aa **Price:** ฿11798 **Availability:** ✅ In Stock ## Summary > 💧 Keep your tank pristine with zero fuss—because your aquatic ecosystem deserves the best! ## Quick Answers - **What is this?** GKM24W by aa - **How much does it cost?** ฿11798 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.th](https://www.desertcart.co.th/products/344377297-gkm24w) ## 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 - • **Smart UV Bulb Alerts:** LED signals when it’s time to replace the sealed UV bulb—easy swap, no mess. - • **Durable & Safe Design:** Fully submersible sealed UV lamp with suction mounts, UL listed for peace of mind. - • **Plug & Play in 5 Minutes:** No tools needed—get your aquarium UV system up and running fast. - • **Crystal Clear Water, Less Hassle:** Efficient UV sterilization reduces algae & parasites, cutting down water changes. - • **Powerful Flow Meets Perfect Wattage:** 120 GPH pump paired with 24W UV lamp ensures optimal parasite control for tanks up to 120 gallons. ## Overview The AA GKM24W Internal UV System is a robust 24-watt sterilizer designed for aquariums up to 120 gallons. Featuring a 120 GPH pump and sealed UV bulb fully submerged for maximum efficiency, it reduces algae and parasite outbreaks while minimizing water changes. Installation is tool-free and quick, with LED indicators for bulb replacement. UL listed and built for durability, it’s the go-to solution for millennial aquarium managers seeking crystal-clear water with minimal maintenance. ## Description GKM24W Internal UV System with Power Head. Keep Your Aquarium Crystal Clear. Reduce water changes. 5 minute installation without any tools. Sealed water UV lamp for direct contact with water. Perfect for aquariums up to 120Ga. Lamp contains Mercury. Manage in Accordance with State Disposal Laws. Review: Ideal unit - 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. Review: Works great highly recommend if you have algae issues - Great product love it. My tank was extremely drained and it cleared it up right away. ## 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 | |---------------|-------| | ASIN | B096SLPSH5 | | Allergen Information | Allergen-Free | | Best Sellers Rank | #47,911 in Pet Supplies ( See Top 100 in Pet Supplies ) #178 in Aquarium Lights | | Brand | AA | | Brand Name | AA | | Customer Reviews | 3.9 out of 5 stars 397 Reviews | | Included Components | Sealed UV bulb | | Item Form | Sealed UV bulb | | Item Type Name | Aquarium UV | | Item Weight | 1.2 Kilograms | | Liquid Volume | 120 Gallons | | Manufacturer | AA Aquarium | | Manufacturer Part Number | AAUV24W-B | | Model Number | AAUV24W-B | | Pet Type | Fish | | Target Species | Fish | | Unit Count | 1 Count | | Warranty Description | 1 year limited warranty except tear & wear part | ## Product Details - **Brand:** AA - **Liquid Volume:** 120 Gallons - **Item Weight:** 1.2 Kilograms - **Item Form:** Sealed UV bulb - **Target Species:** Fish ## Images ![GKM24W - 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. ### ⭐⭐⭐⭐⭐ Works great highly recommend if you have algae issues *by C***I on September 22, 2025* Great product love it. My tank was extremely drained and it cleared it up right away. ### ⭐ Great product -- until UV light stopped working after merely 6 weeks. Tank green again. *by U***. on March 4, 2022* We WERE so pleased with this product and WOULD have gladly given it 5 stars; however, it simply stopped working after merely 6 weeks (actually 40 days)! We read the troubleshooting guide and tried everything from restarting to checking all connections, etc. to no avail. What a pity! This product really works well -- WHEN the UV light is on. Now, we are extremely frustrated! Our tank is 125 gallons and although it took about 2 weeks, the "Green Killing Machine" destroyed the algal bloom exactly as promised, leaving our tank crystal clear. Our fish looked great, the tank was ultra clear and we remarked that we wish we would have purchased one years ago. This all changed, however, when we noticed that the tank was getting a bit cloudy after only 5 1/2 weeks. Figuring it was just temporary, we did not stress over it. Unfortunately, however, it only got cloudier -- and greener -- with each growing day. Troubleshooting simply revealed that the UV light stopped working. Period. Will be glad to update this post and give it 5 stars if the manufacturer/seller makes the situation "right" by fixing or replacing. However, right now we CANNOT recommend this product due to its UNRELIABILITY. What a shame. ## 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) --- ## 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.co.th/products/344377297-gkm24w](https://www.desertcart.co.th/products/344377297-gkm24w) --- *Product available on Desertcart Thailand* *Store origin: TH* *Last updated: 2026-07-05*