Animals & Pet Supplies · Dry Goods
Fluval Underwater Filter Replacement Pads Bio Foam, Poly Max, Poly Carb
Hagen · sold by Whitlyn Aquatics · $4.99–$13.99 · out of stock
Description: Fluval Poly/Clearmax Filter Cartridges help control green water and algae growth by adsorbing and trapping phosphate, nitrite, and nitrate. They effectively produce crystal-clear water, reduce odors, and create optimal conditions for fish and plants while reducing overall aquarium maintenance. Suitable for freshwater and marine environments. Available in multiple models, each designed for a specific Fluval U Series Underwater Filter: U2 – Contains 2 cartridges U3 – Contains 2 cartridges U4 – Contains 2 cartridges Also available: A491 – Fluval U3 Poly/Carbon Cartridge A487 –…
| Option | Price | Stock | |
|---|---|---|---|
| U3 Poly-Foam 2 pack | $4.99 | out of stock | |
| U4 Bio-Foam 2 pack | $5.99 | out of stock | |
| U3 Poly-Carb 2 pack | $6.99 | out of stock | |
| U4 Poly-Carb 2 pack | $7.99 | out of stock | |
| U3 Poly-Max 2 pack | $10.99 | out of stock | |
| U4 Poly-ClearMax 2 pack | $13.99 | out of stock |
Prices and stock from www.whitlynaquatics.com’s public catalog, last checked 2026-11-14 10:47 UTC. “Order via Kaupia” shows the delivered price to your zip (item + the store’s shipping + est. tax) for participating merchants, which fulfill directly. “Checkout at the store” uses the store’s own payment and support. Agents: JSON at https://api.kaupia.com/v1/product?id=kp:10b4c5b1-a343-4e2c-bca6-d1606ad2d704; delivered price GET /v1/quote; order with POST /v1/orders or MCP place_order.