10 x Compatible Filter Set/Service Kit

These are ok for your small Biorb 4 gallon not for the bigger Sizes I have the 16 gallon and upon use of these the water stays cloudy no mater how much optimizer I put went back to the original filter and no cloudiness.

Not good. The white prices are gray and very tiny. Not the usually kind I buy. This stuff isn’t worth the money. Will not buy again.The picture that has less in it(I dumped some of it out before the picture) has the correct kind of media. Big white and black pieces.The picture where it’s full, is from this company. Small tiny black and gray/white prices. Not the same quality.

Always great value and do the job well. Haven't really noticed any difference between these and the genuine BiOrb filters.

Arrived today obviously an essentialPart of keeping your tank clean triedOthers but these are the best

First time buying this way and now in use.works extremely well

when i need more i know where to order .real great buyand well recommended.

Repeat order as very satisfied with product.