Key features

• •Perfect Fit：Aquarium filters are perfectly compatible with Tetra Whisper bio-bag filter cartridges large 20i, 40i; IQ 20, 30, 45, 60; PF20, 30, 40, 60. Fish tank filters are 6.7 inch long and 4.5 inch wide. All fish filters for aquariums are individually packaged and sealed to maintain high quality
• •Clearer Water: Dual-sided mesh designed for catching debris and fish waste, removing odors and discoloration, effectively maintaining PH balance in water and keeping aquarium water clear. With a remarkably high filtration capacity, our aquarium filter cartridge protect both the fish tank power filter and your fish
• •Single-Hole Filter Sponge: Size 2.9" L x 1.6" D; Hole Diameter: 0.5". Prefilter sponge for aquarium works with most hob filters, canister filters, powerheads, etc. Please check the size of pre filter sponge aquarium you need carefully before purchase
• •Life Saver for Fish: The replacement foam cover can be easily attached to the water inlet of the fish tank filter. Effectively prevent shrimp, fish fry or weaker inhabitants from being sucked into the filter
• •Premium Material: Fit for tetra filter comes fully assembled and ready to use. No need to install. Dual-sided mesh catches debris and fish waste. Activated carbon absorb heavy metals from water and improve the taste of water. The non-woven fabric of compatible with tetra filter cartridges captures impurities