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.

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Low Profile External Overflow Box (800 GPH)

Product ID: 183807248

Details

Brand
Fiji Cube
Color
Black
Item Weight
2.27 Kilograms
Material
Polyvinyl
Shape
Rectangular
Special Feature
Breathable

📏Slim & compact design

🔇Whisper-quiet water flow

🔧DIY installation kit included

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€ 371.72

Duties & taxes included

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Sold byAmazon NetherlandsDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🐠 Elevate your aquarium game with sleek, silent, and smart overflow tech!

EFFORTLESS UPKEEP - Detachable skimmer box makes cleaning a breeze—no hassle, no mess.
ALL IN ONE DIY KIT - Comes with template, diamond hole saw, and PVC pipe for emergency drain—install like a pro.
SILENT STREAM TECHNOLOGY - Front and back lid covers ensure whisper-quiet water circulation.
SLEEK SPACE SAVVY DESIGN - Fits seamlessly into any aquarium setup without bulk.
VERSATILE OVERFLOW STYLES - Supports Herbie or Bean Animal overflow setups for ultimate customization.

The Fiji Cube Low Profile External Overflow Box (800 GPH) is a modern, compact aquarium accessory designed for efficient water filtration and quiet operation. Featuring a detachable skimmer box for easy maintenance, included DIY installation tools, and compatibility with popular overflow styles, it’s engineered to enhance any aquarium setup up to 800 gallons.

Specifications

ASIN	B07TTYH7FH
ASIN	B07TTYH7FH
Additional Features	Breathable
Brand Name	Fiji Cube
Color	Black
Customer Reviews	4.4 4.4 out of 5 stars (22)
Date First Available	July 7, 2019
Global Trade Identification Number	00761856629813
Included Components	Front and back lid covers, template & diamond hole saw, PVC pipe for emergency drain installation
Item Shape	Rectangular
Item Type Name	Item
Item Weight	2.27 Kilograms
Item model number	367639
Manufacturer	Fiji Cube
Manufacturer	Fiji Cube
Manufacturer Part Number	367639
Material Type	Polyvinyl Chloride
Model Number	367639
Package Dimensions	10.43 x 10.2 x 7.87 inches; 5.01 Pounds
Product Style	Modern
Specific Uses For Product	aquarium for fish
Tank Volume	800 Gallons
Target Species	Fish
UPC	761856629813
Unit Count	1.0 Count
Vivarium Type	Aquarium

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