Filter Sock Hole Size?

[encrustingacro]

I am designing a sump. Should I make the hole for the filter sock 4" or a little bit less than 4" like 3.875"?

 

[lapin]

I would buy the brand sock you plan on using. Not all 4" socks are created equal.

 

[encrustingacro]

I would buy the brand sock you plan on using. Not all 4" socks are created equal.

I am just designing the sump, not making and using the sump.

 

[DrZoidburg]

Most 4 "socks I have are around 4.25" od a little over 3.75 id.

 

[lapin]

I am just designing the sump, not making and using the sump.

Then it really does not matter if it wont be used.