ThomasLC Posted August 3, 2021 Share Posted August 3, 2021 I know this is a super stupid question but, when ordering new bulkheads for the tank I am refurbishing. I measure the size of the hole and that is the size I order correct? So I have four holes total in the bottom of the tank. Two for out on each side and two for in on each side. Outs are 1 3/4 ins are 1 1/2. So that is the size I order correct? I ask because the 1 3/4 size doesn't seem that common when U am trying to find them online to order, Link to comment Share on other sites More sharing options...
StevesFishTanks Posted August 3, 2021 Share Posted August 3, 2021 The hole in the glass is usually bigger than the size you order. When installing 1" bulkheads in my tanks I used a 1 3/4" holesaw. 1 Link to comment Share on other sites More sharing options...
ThomasLC Posted August 3, 2021 Author Share Posted August 3, 2021 Thank you. Boy do they make that confusing. Link to comment Share on other sites More sharing options...
StevesFishTanks Posted August 3, 2021 Share Posted August 3, 2021 from jehmco 1 Link to comment Share on other sites More sharing options...
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