16 Pack Replacement Filter Cartridges Compatible with Tetra Whisper Large for 20i/40i IQ20/30/45/60 PF20/30/40/60 – Activated Carbon & Zeolite for 5-55 Gallon Fish Tank Aquarium
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Universal Compatibility – One Box for All Tanks: Compatible with Tetra Whisper PF20/30/40/60, IQ20/30/45/60, 20i/40i, and ReptoFilter 50 gallon. A single 16‑pack lasts 3‑6 months – ideal for multi‑tank households or frequent water changes.
4‑in‑1 All‑Round Water Filtration: ① Dual‑sided physical trap catches debris & uneaten food. ② Heavy‑duty activated carbon layer (80% more carbon) adsorbs odors & discoloration for up to 28 days. ③ Zeolite mineral layer balances pH and removes ammonia. ④ Reinforced ABS frame prevents warping in both fresh & saltwater.
30‑Second Tool‑Free Replacement – No Carbon Dust:Pre‑encapsulated filter media eliminates messy carbon leakage. Simply slide out the old cartridge and snap in the new one – no cutting, no pre‑rinsing needed.
Cost‑Effective for 5 to 55 Gallon Tanks: Each cartridge handles up to 50 gallons (125 GPH flow). Perfect for 5 gal, 10 gal, 20 gal, 30 gal, 55 gallon fish tanks – from betta to goldfish to cichlid setups.composite filter material extends service life and reduces the cost of frequent replacement.
Pro Tip – Max Performance: For best water clarity, replace every 2‑4 weeks. Ideal for turtle tanks, goldfish bowls, and freshwater aquariums that need stable water parameters.
