LTWHOME Design Aquarium Mechanical Sponges Compatible with Ferplast Blumec 03 Sponges Fit for Bluwave Internal Filter (Pack of 6 Sets) We recommend that filter pads

We recommend that filter pads should be changed regularly to keep filters effective

Custom designed and manufactured for Aqueon QuietFlow Carbon Cartridge 20/75

keeps your water crystal clear

Pack of 4 Medium Red Foam Filters

Custom designed and manufactured for Hidom AP-1350F internal filter

LTWHOME Design Aquarium Mechanical Sponges Compatible with Ferplast Blumec 03 Sponges Fit for Bluwave Internal Filter (Pack of 6 Sets) We recommend that filter padsPack include: Coarse Foam x 6, Fine Foam x 6. Custom designed and manufactured for Bluwave Internal Filter Blumec 03. 2 different porosity sponges catch large and small particles for a perfect water filtration. Good for fresh and marine water. Rinse before using.