Hole size for 7” filter sock

[Hk45]

Building a custom sump waiting on a 7” filter sock To show up. Anyone measure the hole size for a 7” filter sock. I’m finding two measurements 6.5” and 6-5/8” Thanks

 

[andrewey]

I cut my holes 6 5/8" and it fit perfectly, however, I'm not entirely sure it really matters between the two. I'd say go with whatever you have on hand.

 

[UncommonSense]

Bumping an old thread to avoid making a new one…

It’s been a half-decade since these measurements were spot-on… does anyone have any 7” (or 4”, for that matter!) plastic ring filter socks laying around they could double check hole size for me with?

-I’m making several holders, but haven’t finished compiling the order the socks will be shipped in to have hard measurements for myself!

Thanks,
Jack

 

[BryanM]

6 5/8"

 

[UncommonSense]

Thanks!! Does anyone have a 4” sock laying around to cross-reference for 2025 “shrinkflation”?

 

[56longroof]

Thanks!! Does anyone have a 4” sock laying around to cross-reference for 2025 “shrinkflation”?

My 4" socks are 4.125"

 

[UncommonSense]

My 4" socks are 4.125"

Good to know! This is the OD of the plastic ring, where it locks into a holder, correct?

 

[56longroof]

Good to know! This is the OD of the plastic ring, where it locks into a holder, correct?

Yep

 

[UncommonSense]

Yep

Much appreciated!

 

[56longroof]

Much appreciated!

Your welcome

 

[Jamie814]

Just a FYI not all filter sock brands use the same size ring. They do vary slightly, most withing a 1/4" of each other. I would get your socks first then drill the hole to match if you want a tight fit. just MO