Penn-Plax Replacement Media (2 Pack) – Fits Multi-Pore and Undergravel “E” Filters – Provides Chemical Filtration (FC2) The Swedish Diet Can be used on a

Can be used on a wet or dry coat

Every Toddleroo by North States baby gate is JPMA and ASTM certified

Your pet will have fresher breath

CONTAINS POTENT PREBIOTICS: Prebiotics literally feed probiotics

when detects barks

Penn-Plax Replacement Media (2 Pack) – Fits Multi-Pore and Undergravel “E” Filters – Provides Chemical Filtration (FC2) The Swedish Diet Can be used on aFeatures: REPLACEMENT FILTER MEDIA: These Cartridges are made to fit the lift tubes of Muti Pore and Undergravel E filters, serving as a replacement for when its time to cycle out aquarium filter media. We recommend replacing them once a month. TOP QUALITY CARTRIDGE: Cartridges come together in a 2 Pack. For best results, replace cartridges every 2 to 4 weeks. Theyre lightweight, disposable, and are safe for Freshwater and Saltwater aquariums.