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.

They provide hole saw to install overflow.

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

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.

What is the size of the hole saw?

Not sure exactly size, I think its 2" however they do provide you with hole saw for the job.

Fiji Cube Low Profile External Overflow Box 1200 Gph

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Description

🌊 Elevate your aquarium game with Fiji Cube’s sleek, silent, and smart overflow solution!

EFFORTLESS MAINTENANCE - Detachable skimmer box ensures quick, hassle-free cleaning to keep your tank pristine.
WHISPER QUIET OPERATION - Front and back lid covers minimize noise for a peaceful aquatic environment.
SLEEK LOW PROFILE DESIGN - Fits seamlessly into any modern aquarium setup without bulk or clutter.
VERSATILE OVERFLOW STYLES - Supports Herbie or Bean Animal overflow configurations for customizable water flow control.
COMPLETE DIY INSTALLATION KIT - Includes precision template, diamond hole saw, and PVC pipe for emergency drain—everything you need to install like a pro.

The Fiji Cube Low Profile External Overflow Box delivers a powerful 1200 GPH flow rate in a compact, modern acrylic design. Engineered for easy DIY installation, it includes a precision hole saw and template, plus versatile overflow options (Herbie or Bean Animal style). Its detachable skimmer box and quiet operation make maintenance simple and your aquarium environment serene. Ideal for professional aquarists seeking sleek functionality and reliable performance.

Specifications

ASIN	B07TX2SKMX
Additional Features	Breathable
Brand	Fiji Cube
Brand Name	Fiji Cube
Color	Black
Customer Reviews	3.9 out of 5 stars 27 Reviews
Included Components	Fiji Cube External Overflow assembly, Glass Drill Bit & Hole Template, Associated Bulkheads and Gasket(s), Two Seal Gaskets for each Tank Bulkhead, One Seal Gasket for Drain Bulkhead, Additional Gaskets are available for purchase
Item Shape	box
Item Type Name	Item
Item Weight	2.82 Kilograms
Manufacturer	Fiji Cube
Manufacturer Part Number	367640
Material	Acrylic
Material Type	Acrylic
Model Number	367640
Product Style	Modern
Set Name	Fiji Cube Low Profile External Overflow Box Series
Shape	box
Special Feature	Breathable
Specific Uses For Product	Aquarium setup and customization, DIY installation, water flow management
Tank Volume	72000 Gallons
Target Species	Fish
UPC	761856629820
Unit Count	1.0 Count
Vivarium Type	Aquarium

Reviews

A**R

7.07.2022

M**Y

9.11.2020

K**Y

15.12.2024

M**N

25.02.2021

J**N

11.03.2025

J**N

10.03.2021

C**Y

17.07.2023

A**R

7.08.2024

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

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