Hole size on 120 aga megaflow??

[danfish]

i want to change the bulkheads to savko ones on my return on my 120 gal aga megaflow. does anybody know how big the hole is on the return. the savko 3/4" bulkheads require a 1-5/8" hole and i cant tell b/c the the tank is running now and is impossible to tell by looking at it from underneath.

 

[Deanos]

Should be the same.

 

[crox99]

Same size bulkheads fit in same size holes.

 

[fluidimagery]

Not necessarily. There are fatter 3/4" to fit in 1 3/4" holes and a smaller size to fit 1 5/8"

http://www.customaquatic.com/customaquatic/subsubcategorypage.asp?subcatindexid=pf-ta-t2

They have great bulkheads btw.