ViaAqua Aquarium Filter Sponge Open Cell Foam Sheet Bio Sponge Filter Media Pad HMF Fish Tank Sump Divider 12 x 12 x 2 (Blue, 20PPI)

Provides both mechanical and biological filtration. 20PPI Filter Sponge traps large debris efficiently, and can be used again after cleaning.

AQUANEAT Aquarium Filter Sponge Open Cell Foam Sheet Bio Sponge Filter Media Pad HMF Fish Tank Sump Divider 11 x 10.25 x 2/ 23 x 12.25 x 2 (23 Lx 12.25 W x 2 H, Green) : Pet Supplies

Dimension: 11 Lx 10.25W x 2H, PPI: 40 black fine The open cell sponge has a much larger inner surface area for filtration capacity. This filter pad can be cut to fit and used as a pre-filter for any aquarium or pond filter, sump, wet/dry, canister, power filter etc. or your HMF DIY project. The reticulated structure also provides better flow rate of water and less chance of clog. The size of pores is measure in pores per inch (PPI). The sponge with higher PPI has more pores in it.

Aquaneat Aquarium Filter Sponge Open Cell Foam Sheet Bio Sponge Filter Media Pad HMF Fish Tank Sump Divider (11 LX 10.25 W x 2 H, Blue)

Provides both mechanical and biological filtration. 20PPI Filter Sponge traps large debris efficiently, and can be used again after cleaning. Eliminate toxic compounds and improve water quality. Works great in Pond skimmers, waterfalls, aquariums and all filters. DIMENSION: 12 L x 12 W x 2 Thick approx. Aquarium Pond Coarse Filter Sponge, DIMENSION: 12 L x 12 W x 2 Thick approx.

ViaAqua Aquarium Filter Sponge Open Cell Foam Sheet Bio Sponge Filter Media Pad HMF Fish Tank Sump Divider 12 x 12 x 2 (Blue, 20ppi)

Duedusto Aquarium Filter Pad Media, Bio Sponge Pad Coarse, Cut to Fit Any Aquarium Filter, 3 Pieces : Pet Supplies

Provides both mechanical and biological filtration. 20PPI Filter Sponge traps large debris efficiently, and can be used again after cleaning.

ViaAqua Aquarium Filter Sponge Open Cell Foam Sheet Bio Sponge Filter Media Pad HMF Fish Tank Sump Divider 12 x 12 x 2 (Blue, 20PPI)

AQUANEAT Aquarium Filter Sponge Open Cell Foam Sheet Bio Sponge Filter Media Pad HMF Fish Tank Sump Divider (11 Lx 10.25 W x 2 H, Blue) : Pet Supplies

ALEGI Aquarium Sponge Filter Pad, Bio Filter Media Foam Sponges, Cut-to-Size Foam for Fish Tank (20x20x1.57 (20PPI)) : Pet Supplies

ViaAqua Aquarium Bio Sponge Filter Media Pad Open Cell Foam Cut-to-fit Matten Filter Fish Tank Sump Divider 23.6 x 17 x 2 : Pet Supplies

Provides both mechanical and biological filtration. 20PPI Filter Sponge traps large debris efficiently, and can be used again after cleaning. Eliminate toxic compounds and improve water quality. Works great in Pond skimmers, waterfalls, aquariums and all filters. DIMENSION: 12 L x 12 W x 2 Thick approx. Aquarium Pond Coarse Filter Sponge, DIMENSION: 12 L x 12 W x 2 Thick approx.

ViaAqua Aquarium Bio Sponge Filter Media Pad Open Cell Foam Cut-to-Fit Matten Filter Fish Tank Sump Divider 23.6 x 17 x 2

GUARDMAN filter pads are made from a safe, high-density polyurethane and are free of all dyes and chemicals. The filters are odor free and 100% pet safe for use in both freshwater and marine (saltwater) aquariums. These are an open cell sponge with reticulated design to provide better water flow and reduce clogging. They provide a safe & clean habitat for your fish and aquatic pets. These pads are 30 PPI (Pores Per Inch).

Guardman Filter Foam Sponges, Bio Sponge Filter Media Pad Cut-to-Size Foam for Aquarium Fish Tank Pond Filter Open Cell Foam Sheet Filter Cartridge