1. Home
  2. Fish
  3. Supplies
  4. Filters & Filter Media
  5. Filter Media
  6. Fluval® U3 Underwater Cartridge
Please correct the error(s) indicated below.
Roll over image to zoom

Fluval® U3 Underwater Cartridge

Item: 36-5139092
Be the first to Write a Review
$ 6.49
  • Free Shipping on Orders of $49+
    or Free Store Pickup (where available)
    Learn more


Ship to Home
Buy now, and we’ll ship it to you.
See Shipping Details
Store Pickup
Buy now, pick up in store today.
Sold In Store
Check Store Availability