InstructionsRinse filtration unit briefly to remove carbon/zeolite dust before placing in aquarium for the first time.Insert replacement filtration unit, with slots on top into filter holder.For best results, these disposable filtration units should be replaced every two to four weeks with a fresh unit to help maintain a crystal-clear environment for your fish.
Penn Plax Small World Replacement Filtration Units 2-pack
Style:
Pack Size: Pack of 2 filters
