Bulkheads schedule 40 or 80?

[djtuzik]

I bought a used tank. The holes seem like they are 2 9/16 and 1 10/16 (1.5 and 3/4 bulkheads)
Seems like I need schedule 80 bulkheads, am I wrong?

 

[scelona]

I think you are right about needing schedule 80, this is from the bulkheads that bulkreefsupply sells and they seem to be the best fit http://www.bulkreefsupply.com/bulkh...hread-1-6fc3d5c19d1dce101093e77b0bb4a365.html

3/4" SCH 80
41mm/1.61" (Installation hole size) Use our 42mm Diamond Coated Glass Drill Bit for DIY installation.

1 1/2" SCH 80
64mm/2.51" (Installation hole size) Use our 65mm Diamond Coated Glass Drill Bit for DIY installation.