I have screening material for the Hamburg Filters so if anyone is setting up these filters I can make drilled lift tubes with 4" outlets - you specify length of lift tube - I use 8" on 10g, etc - 12" deep tanks.
How big are the lift tubes of they have 4" outlets? I've been using the lift tubes and tops from my old UG filter plates. The outlets are somewhat screened to start with, and I also cut plasic canvas to fit the opening cut in the poret foam.
