---
product_id: 183807248
title: "Fiji Cube Low Profile External Overflow Box (800 GPH)"
brand: "fiji cube"
price: "£157.69"
currency: GBP
in_stock: true
reviews_count: 5
category: "Fiji Cube"
url: https://www.desertcart.co.uk/products/183807248-fiji-cube-low-profile-external-overflow-box-800-gph
store_origin: GB
region: United Kingdom
---

# Slim & compact design Quiet water flow system DIY installation kit included Fiji Cube Low Profile External Overflow Box (800 GPH)

**Brand:** fiji cube
**Price:** £157.69
**Availability:** ✅ In Stock

## Summary

> 🌊 Elevate your reef game with silent, sleek overflow perfection!

## Quick Answers

- **What is this?** Fiji Cube Low Profile External Overflow Box (800 GPH) by fiji cube
- **How much does it cost?** £157.69 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/183807248-fiji-cube-low-profile-external-overflow-box-800-gph)

## Best For

- fiji cube enthusiasts

## Why This Product

- Trusted fiji cube brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Effortless Upkeep:** Detachable skimmer box makes cleaning and maintenance a breeze.
- • **Sleek & Space-Savvy:** Slim profile fits seamlessly into any aquarium setup without bulk.
- • **All-Inclusive DIY Kit:** Comes with template, diamond hole saw, and PVC pipe for quick, professional installation.
- • **Whisper-Quiet Operation:** Front and back lid covers ensure near-silent water flow—no more noisy tanks.
- • **Versatile Overflow Styles:** Supports Herbie or Bean Animal overflow setups for customized water management.

## Overview

The Fiji Cube Low Profile External Overflow Box delivers a powerful 800 GPH flow rate in a compact, modern design. Engineered for quiet operation with front and back lid covers, it includes a detachable skimmer box for easy maintenance and a full DIY installation kit. Compatible with Herbie and Bean Animal overflow styles, this overflow box is ideal for professional aquarists seeking efficient, noise-free water management in saltwater and reef tanks.

## Description

Product description Fiji Cube External Overflow Box The external overflow box is a popular overflow option for hobbyist to build their tanks into the next level. Fiji Cube’s external overflow box features a slim and safe design that offer another solution to perform your tank build. Features Slim and compact design to suit any aquarium set-ups Works with rimless, eurobrace, and standard trim aquarium tanks Entire skimmer box pulls off for routine maintenance 3/8” thick acrylic mounting wall and base on exterior box Front and back lid cover included to quiet noise of water flow Template & diamond hole saw included for DIY installation PVC pipe included for emergency drain installation Able to achieve Herbie style or Bean Animal style overflow (bean animal overflow on selected model)

Review: Perfect overbox for my 40B Reef Tank - I got this overflow box for my 40B reef tank after getting some bad feedback about the EShopps Eclipse overflow boxes. The problem with the Eclipse is that the back of the box mounts too low so it's hard to eliminate noise. I had to drill a bit higher for this since I have a rimmed tank, but it wasn't too big of an adjustment. I have the older model, not the one pictured here. The designed has been improved since as the lid now sits flush to the box. With my gate value on my drain it was easy to adjust the water box in the box to make it completely silent. I love this box and the price is great compared to similar offerings. Fiji is a great company located in Minnesota. They make a lot of equipment for local fish stores in that area. I'm happy they are on desertcart now selling. You really should give them a try :).
Review: For Rimmed Tank Owners!!! - You will need an extra gasket for rimmed tanks and will more than likely need to file down the intake baffles if you want the water level above the top rim. Wish I knew that before, so I'm sharing it here. I installed on a 60 gallon breeder. Took the adjustments mentioned, but it works great as intended. Used the Mill to take off roughly 1/3 of an inch and it sits flush against the top trim, and I cannot put the cover on the intake. 3 star because this was defintely an oversight by Fiji or something they could communicate more in the listing.

## Features

- SLIM AND COMPACT to suit any aquarium setup
- EASY MAINTENANCE with detachable skimmer box
- QUIET water flow with front and back lid covers
- DIY INSTALLATION with template & diamond hole saw included, PVC pipe included for emergency drain installation
- Herbie Style or Bean Animal Style overflow (Bean Animal Overflow on selected models) achievable

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07TTYH7FH |
| Additional Features | Breathable |
| Brand | Fiji Cube |
| Brand Name | Fiji Cube |
| Color | Black |
| Customer Reviews | 4.4 out of 5 stars 22 Reviews |
| Global Trade Identification Number | 00761856629813 |
| Included Components | Front and back lid covers, template & diamond hole saw, PVC pipe for emergency drain installation |
| Item Type Name | Item |
| Item Weight | 2.27 Kilograms |
| Manufacturer | Fiji Cube |
| Manufacturer Part Number | 367639 |
| Material | Polyvinyl Chloride |
| Material Type | Polyvinyl Chloride |
| Model Number | 367639 |
| Product Style | Modern |
| Special Feature | Breathable |
| Style | Modern |
| Tank Volume | 800 Gallons |
| Target Species | Fish |
| UPC | 761856629813 |
| Unit Count | 1.0 Count |
| Vivarium Type | Aquarium |

## Product Details

- **Brand:** Fiji Cube
- **Color:** White
- **Material:** Acrylic
- **Shape:** Box
- **Specific Uses For Product:** Indoor, Aquarium for Freshwater Fish
- **Style:** Modern
- **UPC:** 761856629790
- **Vivarium Type:** Aquarium

## Images

![Fiji Cube Low Profile External Overflow Box (800 GPH) - Image 1](https://m.media-amazon.com/images/I/61iHN0KJr1L.jpg)
![Fiji Cube Low Profile External Overflow Box (800 GPH) - Image 2](https://m.media-amazon.com/images/I/61mUvbUxfgL.jpg)
![Fiji Cube Low Profile External Overflow Box (800 GPH) - Image 3](https://m.media-amazon.com/images/I/51491r469xL.jpg)
![Fiji Cube Low Profile External Overflow Box (800 GPH) - Image 4](https://m.media-amazon.com/images/I/51kMuuYGSDL.jpg)
![Fiji Cube Low Profile External Overflow Box (800 GPH) - Image 5](https://m.media-amazon.com/images/I/61j081dVYoL.jpg)

## Available Options

This product comes in different **Size** options.

## Questions & Answers

**Q: What size bulkhead does this use for the hole on the aquarium itself? It states the drain bulkhead sizes but not sizes for the aquarium itself.**
A: They provide hole saw to install overflow.

**Q: Is there anywhere i can find the mounting template for this overflow box? i’m trying to see if it’ll match the holes in a synergy reef shadow**
A: I have not seen a template online. The holes on bottom fit 3/4" bulk heads and pvc. I believe the whole on the back with the mounting bulkhead is 1 3/8". My partner and I drilled our own hole for mounting based on the size of the bulkhead and hole on the back. The product does come with a glass cutting drill bit for making the correct size hole.

**Q: What is the size of the hole saw?**
A: Not sure exactly size, I think its 2" however they do provide you with hole saw for the job.

**Q: Will the 2400gph model work on 3/4 inch thick tank walls?**
A: Yes it'll definitely fit

## Customer Reviews

### ⭐⭐⭐⭐⭐ Perfect overbox for my 40B Reef Tank
*by A***T on January 5, 2020*

I got this overflow box for my 40B reef tank after getting some bad feedback about the EShopps Eclipse overflow boxes. The problem with the Eclipse is that the back of the box mounts too low so it's hard to eliminate noise. I had to drill a bit higher for this since I have a rimmed tank, but it wasn't too big of an adjustment. I have the older model, not the one pictured here. The designed has been improved since as the lid now sits flush to the box. With my gate value on my drain it was easy to adjust the water box in the box to make it completely silent. I love this box and the price is great compared to similar offerings. Fiji is a great company located in Minnesota. They make a lot of equipment for local fish stores in that area. I'm happy they are on Amazon now selling. You really should give them a try :).

### ⭐⭐⭐ For Rimmed Tank Owners!!!
*by C***. on February 1, 2025*

You will need an extra gasket for rimmed tanks and will more than likely need to file down the intake baffles if you want the water level above the top rim. Wish I knew that before, so I'm sharing it here. I installed on a 60 gallon breeder. Took the adjustments mentioned, but it works great as intended. Used the Mill to take off roughly 1/3 of an inch and it sits flush against the top trim, and I cannot put the cover on the intake. 3 star because this was defintely an oversight by Fiji or something they could communicate more in the listing.

### ⭐⭐⭐ diameter
*by B***R on November 4, 2025*

The diameter of tubes not specified. The drill template is larger than needed. For that kind of money it should be perfect.

## Frequently Bought Together

- Fiji Cube Low Profile External Overflow Box (800 GPH)
- Adjustable Sump Baffle Kit - Refugium Kit for 20 Gallon Long Tank - Reef Aquarium - Saltwater Aquarium Filter System- Protein Skimmer Sump

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*Product available on Desertcart United Kingdom*
*Store origin: GB*
*Last updated: 2026-05-17*