Filtration system for 1000ml

[jeebise23]

hey guys im doing more volume so i need to get a step up on my filtration system i was using a whatman u45 for a while but im getting to do more volume but the only thing is i dont understand what i need , what i know i want it to use a hand pump andbe able to pump it thru a filter that is smaller than a u45 i seen a few in g.z and reasearch l.bs its a cup with a filter in between and another cup on bottom and has a nozzle on side i guess thats were u would attach the handpump, anyone with knowledge on this plz send info thanks john