---
product_id: 300921662
title: "GRECH CBG-500 5W UV Sterilizer Hang-On Back Filter, 10-30 gallon/132 GPH"
brand: "sunsun"
price: "¥14438"
currency: JPY
in_stock: true
url: https://www.desertcart.jp/products/300921662-grech-cbg-500-5w-uv-sterilizer-hang-on-back-filter
store_origin: JP
region: Japan
---

# 132 GPH Flow Rate Compact Dimensions 5W UV Sterilizer GRECH CBG-500 5W UV Sterilizer Hang-On Back Filter, 10-30 gallon/132 GPH

**Brand:** sunsun
**Price:** ¥14438
**Availability:** ✅ In Stock

## Summary

> 🌊 Dive into Clarity with the GRECH CBG-500!

## Quick Answers

- **What is this?** GRECH CBG-500 5W UV Sterilizer Hang-On Back Filter, 10-30 gallon/132 GPH by sunsun
- **How much does it cost?** ¥14438 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/300921662-grech-cbg-500-5w-uv-sterilizer-hang-on-back-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

- • **Versatile Fit:** Perfect for aquariums ranging from 10 to 30 gallons.
- • **All Life Stages:** Designed to support aquatic life at every stage of their journey.
- • **Surface Skimmer:** Eliminates unsightly surface films for a pristine aquarium view.
- • **Crystal Clear Waters:** Say goodbye to algae and bacteria with our powerful UV sterilizer!
- • **Efficient Filtration:** Combines biological and mechanical filtration for optimal water quality.

## Overview

The GRECH CBG-500 5W UV Sterilizer Hang-On Back Filter is engineered for aquarists seeking crystal-clear water. With an adjustable flow rate of 132 GPH, it effectively eliminates algae and bacteria while accommodating tanks from 10 to 30 gallons. Its compact design and dual filtration system ensure a healthy environment for aquatic life at all stages.

## Description

GRECH CBG-500 5W UV Sterilizer Hang-On Back Filter, 10-30 gallon/132 GPH

## Features

- Adjustable 132gph Filter Flow Rate with Surface Skimmer to eliminate undesired surface films
- Features a 5W UV Sterilizer. Helps eliminate algae and bacteria, 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.Age range description: All Life Stages

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Product Dimensions | 20.32 x 15.24 x 17.78 cm; 500 g |
| Item model number | CBG-500 |
| Pet Life Stage | All Life Stages |
| Allergen Information | Fish Free |
| Color | Black |
| Size | 10-30 gallon/132 GPH |
| Number of Items | 1 |
| Quantity | 1 |
| batteries required | No |
| Batteries Included | No |
| Item Weight | 500 g |

## Images

![GRECH CBG-500 5W UV Sterilizer Hang-On Back Filter, 10-30 gallon/132 GPH - Image 1](https://m.media-amazon.com/images/I/612Xq+O6KoL.jpg)

## 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.

## 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

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**Shop now:** [https://www.desertcart.jp/products/300921662-grech-cbg-500-5w-uv-sterilizer-hang-on-back-filter](https://www.desertcart.jp/products/300921662-grech-cbg-500-5w-uv-sterilizer-hang-on-back-filter)

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-02-17*