Bulkhead size?

[Jamo7]

I’m diving into a new build and the tank I bought is already drilled. The holes are 3 1/4” dynamiter. What size bulkhead fits them? I did quick research online but I couldn’t get a definitive answer. Build thread to come once I get rolling along a little further. I’m sure I’ll have tons of questions once the stand is built.

 

[Water Dog]

3.25” = 82.55mm

According to the BRS bulkhead guide, you can use either a 1.5” or 2” schedule 80 pvc bulkhead.

How To Select and Properly Install Aquarium Bulkheads

Bulkheads allow you to transfer water from one side of an aquarium to the other and allow for traditional PVC plumbing to be connected. In most aquariums, bulkheads are used for drain and return pipes on your display tank but can be used for many other things too. Some tanks come pre-drilled for...

www.bulkreefsupply.com

 

[Jamo7]

3.25” = 82.55mm

According to the BRS bulkhead guide, you can use either a 1.5” or 2” schedule 80 pvc bulkhead.

How To Select and Properly Install Aquarium Bulkheads

Bulkheads allow you to transfer water from one side of an aquarium to the other and allow for traditional PVC plumbing to be connected. In most aquariums, bulkheads are used for drain and return pipes on your display tank but can be used for many other things too. Some tanks come pre-drilled for...

www.bulkreefsupply.com

Thank ya!
How come google couldn’t come up with that handy guide