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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Fiji Cube 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 3/8” acrylic wall

🔇Quiet water flow with dual lid covers

🛠️DIY install kit incl. template & hole saw

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€ 370.73

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Sold byAmazon NetherlandsDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🐠 Elevate your reef game with silent, sleek overflow mastery!

EFFORTLESS MAINTENANCE - Detachable skimmer box makes cleaning a breeze without tank disruption
WHISPER QUIET OPERATION - Front & back lid covers minimize noise for peaceful tank ambiance
SLEEK SPACE SAVVY DESIGN - Slim profile fits rimless, eurobrace & standard tanks seamlessly
VERSATILE OVERFLOW STYLES - Supports Herbie or Bean Animal overflow for advanced aquarium control
COMPLETE DIY INSTALLATION KIT - Includes template, diamond hole saw & PVC pipe for emergency drain setup

The Fiji Cube Low Profile External Overflow Box delivers a compact, quiet, and versatile overflow solution for aquariums up to 800 GPH. Crafted from durable 3/8” acrylic, it fits various tank styles including rimless and eurobrace. Its detachable skimmer box simplifies maintenance, while included DIY tools and emergency drain PVC pipe empower easy installation. Designed to support advanced Herbie and Bean Animal overflow methods, it’s the perfect upgrade for serious hobbyists seeking silent, efficient water flow and sleek aesthetics.

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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