I would need to do some research on the 1076/2 I don't stock them and I have never used one. The 1074/2 I have used, it is very quiet and easy to use. The cons are it doesn't have a built in adjustment, most US made ones have screws to adjust the positioning. The Tunze unit is adjusted by using shims of styrofoam. The only other draw back is it can only handle about 300 gph.