--- product_id: 339496216 title: "AA GKM3W Mini Internal UV,Black,AAUV3W-B" brand: "aa" price: "€ 112.28" currency: EUR in_stock: true reviews_count: 13 category: "Aa" url: https://www.desertcart.be/products/339496216-aa-gkm3w-mini-internal-uv-black-aauv3w-b store_origin: BE region: Belgium --- # 50 GPH pump flow rate 3W sealed UV bulb, 6-9 months lifespan Tool-free installation with suction cups AA GKM3W Mini Internal UV,Black,AAUV3W-B **Brand:** aa **Price:** € 112.28 **Availability:** ✅ In Stock ## Summary > 💡 Keep your aquarium glowing and your social feed flowing! ## Quick Answers - **What is this?** AA GKM3W Mini Internal UV,Black,AAUV3W-B by aa - **How much does it cost?** € 112.28 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.be](https://www.desertcart.be/products/339496216-aa-gkm3w-mini-internal-uv-black-aauv3w-b) ## 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 - • **Compact Yet Mighty:** Designed for tanks up to 20 gallons, fitting discreetly without sacrificing performance. - • **Durable & Safe Design:** Sealed UV bulb prevents housing damage and ensures consistent, EPA-approved sterilization. - • **Plug & Play Simplicity:** No tools needed—attach with suction cups and start enjoying pristine water in minutes. - • **Smart Maintenance Alerts:** LED indicator signals when it’s time to replace the UV bulb—easy swap, no hassle. - • **Crystal Clear Aquariums, Effortlessly:** Powerful 3W UV lamp directly contacts water for maximum clarity and algae control. ## Overview The AA GKM3W Mini Internal UV is a compact, submersible UV sterilizer with a 3W sealed bulb and 50 GPH pump, designed for aquariums up to 20 gallons. It offers tool-free installation via suction cups, LED replacement alerts, and a durable design that reduces algae and water changes, ensuring crystal-clear aquatic environments with minimal effort. ## Description GKM3W mini Internal UV with Power Head. Keep Your Aquarium Crystal Clear. Reduce water changes. Installation without any tools. Perfect for aquariums for up to 20Ga. Spare bulb and replacement sponge available. Lamp contains Mercury. Manage in Accordance with State Disposal Laws. Review: A Must Have For Any Aquarium - This is a must have for anyone who owns an aquarium. One day I left for work and forgot to turn the light off in my aquarium. Yikes! Within two weeks, my water was cloudy and light green in color. Just FYI, I do 1/3 water changes every week, vacuum the substrate, and wipe down the walls of the aquarium. My water has always been crystal clear so this was a huge departure from what I am used to. Needless to say, I wanted to clear this up as quickly and carefully as possible. I searched around desertcart and the internet and came upon this gem called "Little Green Killing Machine". I thought that is was reasonably priced to allow me to try it and not break the bank if it did not work. So, my expectations were level set going into it. WELL! This little machine cleaned my water in about 4 hours. CRYSTAL CLEAN AGAIN! I really could not believe it. I decided to keep it running for a week and just about 5 days ago, I removed it. I was bracing myself for the return of the cloudiness/algae. It has not returned. My tank is so clear and I am so grateful the this Little Green Killing Machine. I really think this should be included in any start up bundle for a novice aquarium owner like myself. The item over delivered for an outrageously fair price with fast shipping and complete satisfaction. as an aside, I have a BioOrb 4 gallon vertical tank and it fit perfectly. Review: Great product with fast results. - 3 days to fully clear! After an algae bloom due to pH drop following a re-escape of my Fluval Spec V, my aquarium was in desperate need of a little bit of assistance. This product is amazing —see the before and after photos. This was after only 72 hours in the aquarium, three days total from the first picture to the second picture. The only complaint that I have is that the unit is just slightly too large to fit into the back compartment instead of the stock pump. ## Features - GKM3W mini Internal UV with Power Head. For aquariums up to 20 gallons. - The GKM3W allows water flow in direct contact with the UV lamp, making it extremely efficient. Keep your aquarium crystal clear & reduce water changes. - No tools required. Simply attached to the inside of the aquarium with the included suction cups. Submersible design for the sealed UV Bulb and pump. - 2.5" x 2.5" x 7.5" 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. - Pump Flow Rate: 50 GPH. UL listed. EPA Est # 093568. - Included components: Water pump, Sealed UV bulb. Comes with UL plug, only suitable for US market. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0957RMC33 | | Allergen Information | Allergen-Free | | Best Sellers Rank | #65,899 in Pet Supplies ( See Top 100 in Pet Supplies ) #233 in Aquarium Lights | | Brand | AA | | Brand Name | AA | | Customer Reviews | 4.3 out of 5 stars 379 Reviews | | Included Components | Water pump, Sealed UV bulb | | Item Form | Device | | Item Type Name | Aquarium UV | | Item Weight | 1.2 pounds | | Liquid Volume | 80 liters | | Manufacturer | AA Aquarium | | Manufacturer Part Number | AAUV3W | | Model Number | AAUV3W-B | | Number of Items | 1 | | Number of Packs | 1 | | Pet Type | Fish | | Target Species | Fish | | Unit Count | 1 Count | | Warranty Description | 1 year limited warranty except tear & wear part | ## Product Details - **Brand:** AA - **Item Form:** Device - **Item Weight:** 1.2 pounds - **Liquid Volume:** 80 liters - **Number of Packs:** 1 ## Images ![AA GKM3W Mini Internal UV,Black,AAUV3W-B - Image 1](https://m.media-amazon.com/images/I/71feedGC4ZL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ A Must Have For Any Aquarium *by D***O on August 15, 2026* This is a must have for anyone who owns an aquarium. One day I left for work and forgot to turn the light off in my aquarium. Yikes! Within two weeks, my water was cloudy and light green in color. Just FYI, I do 1/3 water changes every week, vacuum the substrate, and wipe down the walls of the aquarium. My water has always been crystal clear so this was a huge departure from what I am used to. Needless to say, I wanted to clear this up as quickly and carefully as possible. I searched around Amazon and the internet and came upon this gem called "Little Green Killing Machine". I thought that is was reasonably priced to allow me to try it and not break the bank if it did not work. So, my expectations were level set going into it. WELL! This little machine cleaned my water in about 4 hours. CRYSTAL CLEAN AGAIN! I really could not believe it. I decided to keep it running for a week and just about 5 days ago, I removed it. I was bracing myself for the return of the cloudiness/algae. It has not returned. My tank is so clear and I am so grateful the this Little Green Killing Machine. I really think this should be included in any start up bundle for a novice aquarium owner like myself. The item over delivered for an outrageously fair price with fast shipping and complete satisfaction. as an aside, I have a BioOrb 4 gallon vertical tank and it fit perfectly. ### ⭐⭐⭐⭐⭐ Great product with fast results. *by H***R on September 16, 2026* 3 days to fully clear! After an algae bloom due to pH drop following a re-escape of my Fluval Spec V, my aquarium was in desperate need of a little bit of assistance. This product is amazing —see the before and after photos. This was after only 72 hours in the aquarium, three days total from the first picture to the second picture. The only complaint that I have is that the unit is just slightly too large to fit into the back compartment instead of the stock pump. ### ⭐⭐⭐⭐⭐ Cleared tank quickly!!! *by A***R on October 13, 2026* Omg I rarely write reviews. I was At a loss. No matter what I did my poor fish tank was so green I Couldn’t see through it! I ask ChatGPT what was going from and it recommended this product and just days later whole tank crystal clear!!! Never had a solution for a tank work so well so quickly! ## Frequently Bought Together - AA GKM3W Mini Internal UV,Black,AAUV3W-B - AA GKM9W Internal UV for Aquariums up to 50Ga,Black - Seachem Indoor Purigen Organic Filtration Resin - Fresh and Saltwater 100 ml --- ## 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.be/products/339496216-aa-gkm3w-mini-internal-uv-black-aauv3w-b](https://www.desertcart.be/products/339496216-aa-gkm3w-mini-internal-uv-black-aauv3w-b) --- *Product available on Desertcart Belgium* *Store origin: BE* *Last updated: 2026-10-24*