---
product_id: 10701882
title: "1800 GPH Internal Overflow Box"
brand: "reefcreators"
price: "¥3373"
currency: JPY
in_stock: false
reviews_count: 8
url: https://www.desertcart.jp/products/10701882-1800-gph-internal-overflow-box
store_origin: JP
region: Japan
---

# 1800 GPH flow rate 3/16" thick 100% cast acrylic Proudly American made 1800 GPH Internal Overflow Box

**Brand:** reefcreators
**Price:** ¥3373
**Availability:** ❌ Out of Stock

## Summary

> 💧 Elevate your reef game with flawless flow and sleek style!

## Quick Answers

- **What is this?** 1800 GPH Internal Overflow Box by reefcreators
- **How much does it cost?** ¥3373 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/10701882-1800-gph-internal-overflow-box)

## Best For

- reefcreators enthusiasts

## Why This Product

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

## Key Features

- • **Proudly American Made:** Quality craftsmanship you can trust, supporting local manufacturing.
- • **Sleek Internal Design:** Conceals plumbing for a clean, minimalist aquarium aesthetic.
- • **Powerful 1800 GPH Flow:** Keep your reef tank pristine with high-capacity water circulation.
- • **Precision Straight Teeth:** Engineered to prevent fish loss while maintaining optimal flow.
- • **Premium 3/16" Cast Acrylic:** Durable, crystal-clear material built to last and impress.

## Overview

The 1800 GPH Internal Overflow Box is a redesigned, American-made aquarium accessory crafted from heavy 3/16" cast acrylic. It features precise straight teeth to prevent fish loss and hides unsightly plumbing, delivering powerful water flow and a clean, professional look for reef tanks measuring 12"W x 5"T x 3.5"D.

## Description

These are all new and redesigned. Our original version was ugly and after user feedback we redesigned all of our overflow boxes. Each one has prefect straight teeth and hide unsightly plumbing in your reef tank with a internal over flow box. The teeth are designed to prevent fish loss or other tank inhabitants from being lost. Measurements 12"W x 5"T x 3 1/2"D

## Features

- 1800 GPH
- Heavy 3/16" 100% Cast Acrylic
- American Made
- Even Straight Teeth

## Images

![1800 GPH Internal Overflow Box - Image 1](https://m.media-amazon.com/images/I/816QEd1ZddL.jpg)
![1800 GPH Internal Overflow Box - Image 2](https://m.media-amazon.com/images/I/71E3RAWT7jL.jpg)
![1800 GPH Internal Overflow Box - Image 3](https://m.media-amazon.com/images/I/81+Xx7AnKiL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great product!!!!!
*by D***D on February 10, 2019*

I have ordered overflow boxes from this exact seller in the past and yet again this one meet my expectations in every way. Top quality and a great price and shipped fast. Thats why i am a return customer. I dont often give a 5 star rating this one deserves it for sure.

### ⭐⭐⭐⭐⭐ I contacted Ryan who took care of a replacement super quick. Very nice looking overflow with even seems ...
*by A***R on August 17, 2017*

Ordered and received quick enough. The box had obviously been dropped in shipped by and the overflow was damaged. I contacted Ryan who took care of a replacement super quick. Very nice looking overflow with even seems and square. Great quality. Thanks!

### ⭐⭐ Construction and quality were nice for the price
*by A***V on August 6, 2015*

Just picked one of these up for a 220 I'm building. After receiving it I quickly realized there's no way it could handle 1800 GPH. Construction and quality were nice for the price. But if your planning to try and some surface skimming get something bigger. I actually ordered another one so should be able to handle my pump now..

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**Shop now:** [https://www.desertcart.jp/products/10701882-1800-gph-internal-overflow-box](https://www.desertcart.jp/products/10701882-1800-gph-internal-overflow-box)

---

*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-02-21*