will i have to buy the sponge, and media separately?

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.

Where can I buy the UV light to replace (spec. says it lasts 10,000 hours)?

It is a 5W G23 UVGI Bulb. You can find them on Amazon or e-bay.

What are the dimensions of the filter baskets?

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

where are the part numbers for the replaceable filters and UV

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.

Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

Help Track order

Account Cart

Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

Help Track order

Account Cart

Grech CBG-500

Product ID: 34542656

🐠10-30 Gallon Capacity

💧132 GPH Flow Rate

🔆5W UV Sterilizer

Buy anything from 5,000+ international stores. One checkout price. No surprise fees. Join 2M+ shoppers on Desertcart.

¥15057

Duties & taxes included

In stock

Sold byAmazon JapanDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Japan.

Secure transaction

Description

🌊 Dive into Clarity with the GRECHCBG-500!

COMPACT DESIGN - Fits seamlessly in your aquarium setup.
CRYSTAL CLEAR WATERS - Say goodbye to algae and bacteria!
EFFORTLESS FILTRATION - Biological and mechanical filtration for all life stages.
SURFACE SKIMMER INCLUDED - Eliminates unsightly surface films effortlessly.
ACTIVE CARBON BIO MEDIA - Enhances water quality for a thriving aquatic environment.

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.

Specifications

Customer Reviews

4.1 out of 5 stars 414 Reviews

Reviews

M**H

27.10.2024

G**S

26.11.2016

A**R

22.03.2026

D**U

1.09.2018

A**R

1.12.2024

T**E

21.03.2018

M**K

5.12.2021

J**S

9.05.2025

D**E

28.08.2022

C**E

9.03.2023

S**L

26.10.2021

H**A

16.01.2024

J**Z

23.03.2023

Common Questions

Are the products genuine and authentic?+

Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

How long does delivery take and is it reliable?+

Delivery times vary by destination country, typically ranging from 3-9 business days. Each order is fully trackable through our system. We handle all customs clearance and use reliable courier partners for last-mile delivery. You'll receive regular updates about your order status via email and our app.

What is Desertcart? Is it safe to order from?+

Desertcart is an international e-commerce platform operating since 2014. We securely process thousands of orders globally each day. Every product goes through our quality verification process before delivery, and we provide end-to-end order tracking, 24/7 customer support, and a comprehensive returns policy to ensure a safe shopping experience.

How is product pricing calculated?+

Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Ravi S.

I loved the variety of products available. Will definitely shop again.

2 months ago

Pooja R.

The customer service exceeded my expectations. Perfect for buying products you can't find elsewhere.

1 week ago

View all Trustpilot reviews

Shop Global, Save with Desertcart

Value for Money

Competitive prices on a vast range of products

Shop Globally

Serving millions of shoppers across more than 100 countries

Enhanced Protection

Trusted payment options loved by worldwide shoppers

Customer Assurance

Trusted payment options loved by worldwide shoppers.

Desertcart App

Shop on the go, anytime, anywhere.

Buy anything from 5,000+ international stores. One checkout price. No surprise fees. Join 2M+ shoppers on Desertcart.

¥15057

Duties & taxes included

In stock

Sold byAmazon JapanDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Japan.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Rajesh P.

Customer service was outstanding when I had questions about the product.

2 days ago

Ali H.

Fast shipping and excellent packaging. The Leatherman tool feels very premium and sturdy.

1 day ago

View all Trustpilot reviews