Feeling Discouraged

[WiredWeasel]

When buying filter socks, how do you determine length needed? Does it matter? Also had anyone bought these off of the wish app?

I buy the crud ones off alibaba/aliexpress hundreds at a time and split the cost between a few friends. Theyre exactly the same as the ones you see domestically in stores for 7 bucks and up. Measure the depth between your intake and the bottom of the tank. As for the diameter well thats dependent on whatever holding device you use.