Product Description
U1 Filter Sponge Replacement Parts, designed as the first stage of mechanical filtration, each pad uses high-porosity polyurethane foam to trap coarse debris before it reaches delicate biological media or the pump rotor.
Quick Setup:
Power off and lift the U1 filter out of the tank.
Remove the old pad and slide the new one into the molded groove until it clicks flush.
Reinstall, prime with tank water, and you're done in under 60 seconds.
Eco & Wallet Friendly:
The foam filter pads are highly durable and are recommended to be replaced every 4-6 weeks. One 4-pack covers up to 6 months of routine maintenance for most home aquariums.
Compatibility & Trust:
Works exclusively Compatible with Fluval U1 Underwater Filter.
Not suitable for U2/U3/U4 or other brands without modification.
Provide your beloved pets, such as fish and turtles, with the water clarity they deserve, and give your pump the protection it needs.