hmmmm, BakPak good,..Prizim BAD
Bak Pak-possible to change quality of foam, not noisy, good gph, gots a place for biobale/heater, kinda $$, looks nice, adjustable air control-just turn a knob.
PRIZIM-Pitiful,LOUD!, to small, not enough reaction time,ypu get what you pay for (which isint...