The Reptology Internal Filter 175 Disposable Carbon helps keep your terrarium water clean. Filled with activated carbon this cartridge will help remove odors and discoloration in your terrarium. Quick, easy and ready to use this cartridge is made specifically to fit the Reptology Internal Filter 175; this replacement carbon cartridge fits securely without gaps that lead to weaknesses in filtration strength. An exact fit keeps debris and contaminants from getting through your filtration system and back into the water.
Instructions: Rinse thoroughly with cold water before placing in filter. For best results, replace every 4-6 weeks.