Penn-Plax Ammonia-X Replacement Zeolite Media Cartridges (2 Pack) – Choose E, Undertow and Perfecto Perfect-A-Flow Filters or Universal – Provides Chemical Filtration for Modern Aquariums (E Filter)

Description

Chemical Filtration: Supercharged with Zeolite crystals, these filter media cartridges absorb ammonia in a fast and timely manner. Thus, removing ammonia from your tank, and maintaining a stable pH level. Top-Quality Zeolite: These Activated Carbon Cartridges come together in a 2 Pack. For best results, replace cartridges every 2 to 4 weeks. They’re lightweight and disposable.