--- product_id: 34542656 title: "GRECH CBG-500 5W UV Hang On Back Aquarium Filter – 132 GPH HOB Power Filter for 10-30 Gallon Fish Tanks, External Filter with UV Water Clarifier" brand: "sunsun" price: "VT21375" currency: VUV in_stock: true reviews_count: 13 category: "Sun Sun" url: https://www.desertcart.vu/products/34542656-grech-cbg-500-5w-uv-hang-on-back-aquarium-filter store_origin: VU region: Vanuatu --- # 10-30 Gallon Capacity 132 GPH Flow Rate 5W UV Sterilizer GRECH CBG-500 5W UV Hang On Back Aquarium Filter – 132 GPH HOB Power Filter for 10-30 Gallon Fish Tanks, External Filter with UV Water Clarifier **Brand:** sunsun **Price:** VT21375 **Availability:** βœ… In Stock ## Summary > 🌊 Dive into Clarity with the GRECHCBG-500! ## Quick Answers - **What is this?** GRECH CBG-500 5W UV Hang On Back Aquarium Filter – 132 GPH HOB Power Filter for 10-30 Gallon Fish Tanks, External Filter with UV Water Clarifier by sunsun - **How much does it cost?** VT21375 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.vu](https://www.desertcart.vu/products/34542656-grech-cbg-500-5w-uv-hang-on-back-aquarium-filter) ## Best For - sunsun enthusiasts ## Why This Product - Trusted sunsun brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - β€’ **Compact Design:** Fits seamlessly in your aquarium setup. - β€’ **Crystal Clear Waters:** Say goodbye to algae and bacteria! - β€’ **Effortless Filtration:** Biological and mechanical filtration for all life stages. - β€’ **Surface Skimmer Included:** Eliminates unsightly surface films effortlessly. - β€’ **Active Carbon & Bio Media:** Enhances water quality for a thriving aquatic environment. ## Overview The GRECHCBG-500 5W UV Sterilizer Hang-On Back Filter is designed for aquarium enthusiasts with tanks ranging from 10 to 30 gallons. It features an adjustable 132 GPH flow rate, a powerful 5W UV sterilizer, and includes both active carbon and bio media for superior biological and mechanical filtration. Its compact dimensions (7.6 x 4.4 x 6.5 inches) make it a perfect fit for any aquarium setup, ensuring crystal clear water and a healthy aquatic environment. ## Description The Grech CBG-Series Hang-On Back UV Filter offers a versatile and convenient filtration solution for freshwater and saltwater aquariums. Designed in a user-friendly β€œHang-On Back” style, it provides easy installation, quiet operation, and adjustable water flow to suit your tank’s needs. The CBG-Series combines mechanical and biological filtration with included activated carbon and bio media for efficient water clarification. Its integrated 5W UV clarifier can be turned on or off to support clear, bright water. The adjustable surface skimmer helps reduce surface buildup, keeping your aquarium looking clean and well-maintained. Ideal for home aquariums, tropical fish tanks, and planted setups. ## Features - Adjustable 132gph Filter Flow Rate with Surface Skimmer to eliminate undesired surface films - Features a 5W UV Sterilizer. Keeping aquarium water crystal clear - Suitable Aquarium Tank Size: 10 to 30 Gallons - Dimension: 7.6 x 4.4 x 6.5in (192 x 110.5 x 165mm) - Biological and mechanical filtration. Box includes active carbon and bio media ## Technical Specifications | Specification | Value | |---------------|-------| | Customer Reviews | 4.1 out of 5 stars 414 Reviews | ## Images ![GRECH CBG-500 5W UV Hang On Back Aquarium Filter – 132 GPH HOB Power Filter for 10-30 Gallon Fish Tanks, External Filter with UV Water Clarifier - Image 1](https://m.media-amazon.com/images/I/612Xq+O6KoL.jpg) ## Available Options This product comes in different **Size** options. ## Questions & Answers **Q: will i have to buy the sponge, and media separately?** A: You don't have to buy the sponge and media. It comes with the pump. But, you'll have to replace them eventually. The sponge can be washed and reused. **Q: Where can I buy the UV light to replace (spec. says it lasts 10,000 hours)?** A: It is a 5W G23 UVGI Bulb. You can find them on Amazon or e-bay. **Q: What are the dimensions of the filter baskets?** A: Roughly 3.5"w, 2"d, 2"h.......Obviously Bio media isn't an issue, and any carbon media bag works for the center basket, but the trick is the sponge. I buy fluval 30 size media sponges, cut them in half and turn them sideways and they fit perfect. Somewhat of a pain, but depending on the quantity of fish in your tank, you shouldn't need to replace your sponge but once every few months. And rinse it out about every 20 days or so **Q: where are the part numbers for the replaceable filters and UV** A: I can tell you the part number which is WTCUH5L. Made by Grech , it’s a 5 watt UV light. So far I have been unsuccessful finding a US source and or equivalent. I’m still looking just in case. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Review *by M***H on October 27, 2024* ### ⭐⭐⭐⭐⭐ Review *by G***S on November 26, 2016* ### ⭐⭐⭐⭐ Review *by A***R on March 22, 2026* ## Frequently Bought Together - Grech CBG-500 5W UV Sterilizer Hang-On Back Filter, 10-30 gallon/132 GPH - AquaClear 50 Foam Filter Inserts, Aquarium Filter Replacement Media, 3 Count (Pack of 1), A1394 - Grech CBG-800 5W UV Sterilizer Hang-On Back Filter, 20-50 gallon/211 GPH, Black --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.vu/products/34542656-grech-cbg-500-5w-uv-hang-on-back-aquarium-filter](https://www.desertcart.vu/products/34542656-grech-cbg-500-5w-uv-hang-on-back-aquarium-filter) --- *Product available on Desertcart Vanuatu* *Store origin: VU* *Last updated: 2026-05-03*