Fluval Foam Filter Block for 206/306 by by Fluval
Fluval Foam Filter Blocks provide effective first-stage mechanical filtration for Fluval 204/205/206 and 304/305/306 model filters. These foam blocks are custom-fit to trap large particles and debris, with an ideal pore size to allow efficient water passage and prevent clogging.
- Traps particles and debris for mechanical filtration
- Pore size allows efficient water passage with less clogging
- Safe for freshwater and marine aquariums
- For Fluval 204/205/206 and 304/305/306 filters
The additional filter surface area provided by this foam also enhances biological filtration.
Dimensions: 2.74"L x 1"W x 8.5"H
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This is the exact sponge filter needed for the Fluval 305. Works great and fits perfectly!
works great, quickly returns tank to top notch form after maaintenance
I've had my fluval 204 for years, just now replacing the last 2 of 4 filters, these work great and fit perfectly!