I have this 3phase pump and 2 veneer pressing bags. One bag is 4' x 12', the other is 4' x 8'. The 12' bag is in near perfect condition having only been used for a couple months. The 8' bag is older and has some pin prick holes in it but works perfectly with the tape I placed over the holes. The bags are the good industrial type bags. The pump ran both bags for me without a bit of trouble. The pump is quiet and runs 24/7 if you want without a hitch. Link.