6-Pack, Size B, Rite-Size Cartridge Refills

These filter well, but I wish they were more environmentally friendly. They would be more efficient if I could clean them for reuse. They leave black specks on the fabric which sometimes get into the tank. They do a good job cleaning the tank.

could not use wrong size to small

They say filter should last several weeks, barely lasts several days

have used them before and will continue to use them in the future

Filter (2) in box torn, charcoal leak in tank.

Perfect fit and great amount so I dont run out.

These fit perfectly and the price is great

Good filters and a good price, works very well in. my fish tank

VERY DISAPPOINTED! I order these somewhat regularly and have NEVER had this issue. They are always on a plastic bag (not these). The carbon was all over everything in the box i received, including my white Sleep gown. Thankfully I was able to save the gown. The price is great however these appear as re-dos...not brand new...

Quick transaction and perfect for what I needed ! Thanks