Image 1 of 1 Up-stem extender for the Pre-Filter for your Fluval FX 2/4/6, by Poth-O-Carry® $9.99 This extender for the sponge filter will get another max 7 inches of useable distance. total length 8" Quantity: Purchase Added! This extender for the sponge filter will get another max 7 inches of useable distance. total length 8" You Might Also Like Single-Sponge Pre-Filter for your Fluval FX 4/6, by Poth-O-Carry® from $16.99 Dual-Sponge Pre-Filter for your Fluval FX 4/6, by Poth-O-Carry® from $21.99
