hole size for 1.5 inch bulkhead?

[sharkboy]

Quick question. What is the hole size for a 1.5 inch bulkhead?

[dwdenny]

heavy duty is 2 5/8" I think regular is 2 3/8"

[NaCl_H2O]

Marine Depot gives a nice Chart (http://www.marinedepot.com/aquarium_plumbing_parts_fittings_bulkheads_straine rs.asp)

[pilot_bell777]

I always take my bulkheads up to Lowes and then find the packages of hole saws that you can put the bulkhead up to and find the one closest to the bulkhead.