Ken's Cartridge with Zeolite & Carbon Mix For Whisper Filters (Replaces OEM Large)

Made to fit Whisper® 1, 2, 3 Compact, 20, 30, 40 & 60 — Pulsar® 125, 200 & 300 — Tetratec™ PF150 & PF300 — All TRIAD™ — Dynaflo® 2, 150, 310 & 450 — Concorde® 180 (Penn Plax) Cartridges

• Each cartridge has both zeolite & carbon mixed
• The Carbon removes smell and helps keep water clear while the Zeolite removes Ammonia.