10 pcs Medium Filter Cartridges Compatible with Tetra Whisper Bio-Bag Filters Aquarium Replacement Filter Cartridge for Whisper ReptoFilter and 10i IQ10 PF10 Power Filters

【WIDE COMPATIBILITY 】 Compatible with Whisper Bio-Bag Medium size, including Whisper PF10 Power Filter, 10i Internal Filter, IQ10, and ReptoFilter 90 GPH. Specifically designed for 5-10 gallon fish tanks and aquariums, ensuring a snug fit without water bypass. 

【4-STAGE ADVANCED FILTRATION 】 Beyond standard carbon, we added natural Zeolite to our multi-stage system. The dual-sided dense mesh captures debris, while ultra-activated carbon removes odors. The Zeolite specialized layer is designed to absorb impurities and heavy metals, maintaining a stable PH for your aquatic pets.

【CRYSTAL CLEAR WATER 】 Our high-density fiber padding provides enhanced filtration thickness. This ensures efficient removal of fish waste and impurities, creating a fresher, oxygen-rich environment for goldfish, bettas, and turtles to thrive.

【EASY INSTALLATION 】 Each filter cartridge is pre-assembled for your convenience. Simply rinse under cool water to remove any surface dust, then slide it into the filter chamber. Dimensions are 3.5 x 5.5 inches, optimized for the most popular small-to-medium aquarium setups.

【12-PACK SET 】 We recommend replacing the cartridge every 2-4 weeks depending on your tank's bio-load. This 12-pack supply keeps your aquarium pristine for months.