LTWHOME 18 Inch x 12 x 1.18 DIY Polyester Fine Filter Pad for Aquarium Pond (Pack of 3)Packing include: 3pcs foam filter Size: 460x300x30mm 18"x12"x1. 18" Change every 3 4 weeks Provides efficient water flow with less clogging for long lasting filtration Enhances biological filtration

Packing include: 12 pcs coase foam filter

Each set have 3 foams ( 1 x fine

Dual Clean 600

Traps large particles and provides efficient water flow with less clogging

Custom designed and manufactured for Fluval C3 Power Filter

Approx size:150 mm diameter x 20mm thickness

Also fits all mid-range pumps

Custom designed and manufactured for Oase BioPlus 50

Washable and reusable

7cm length by 9

Custom designed and manufactured for Eheim Pro 4 250

10 gallons