44-how-to-make-a-diy-hamburg-mat-filter-hamburger-mattenfilter-diy-wednesday


Watch as i construct a hamburg mat filter out of a 2" piece of foam, a PVC tube, an airline hose, and an air stone. It's important to note that I used a check-valve on my airline which reduces the chance to having a back-siphon drain your tank - which is 

24,086