ALEGI Sponge Filter Pad, 20x20x1 inch, 20PPI, bio filter media

One sponge filter pad from ALEGI comes in this pack, sized 20x20x1 inch with a 20PPI pore rating and sold as aquarium filter media for a tank's filtration system. The pad is 20 inches square and 1 inch thick, so a filter compartment can take a trimmed piece. Sponge material makes up the pad, and the material resists deformation, decomposition and dissolution.

Washing and reusing the sponge pad

After a wash, the pad can go back into service many times over.

What the 20PPI sponge does in a filter

The high-density sponge structure provides mechanical filtration, and particles held in the water are captured by the pad. ALEGI states 20PPI as the pore grade for the whole sheet, so the pad is a single density rather than a mix. A cut piece can be placed into the filtration system when the compartment is smaller than 20 by 20 inches.

Because the material resists deformation, decomposition and dissolution, a pad that sits in water and gets squeezed out between uses holds its shape.

Does this 20PPI pad suit your filter compartment?

Check the inside dimensions of the compartment before cutting: the pad is 20x20x1 inch, so a space narrower or shorter than 20 inches takes a trimmed piece, and a compartment deeper than 1 inch takes more than one layer of the same sheet. Measure the slot depth as well as its width and length. Trimming decides how much of the 20x20 inch sheet a single job uses, and a smaller compartment simply takes a smaller piece.

Cutting the pad to size and placing it

Cut the sheet to the size the filter needs, then place the cut piece into the filtration system. Trimming from the edge of the 20x20 inch sheet leaves the rest of the pad whole for another fitting, and the 1 inch thickness keeps the same depth after a trim. When the pad is washed and reused, the same cut piece goes back into the compartment.

What arrives with this sponge sheet

• One sponge filter pad, 20x20x1 inch
• Pore rating of 20PPI across the sheet
• Sponge material that resists deformation, decomposition and dissolution

Questions about this sponge filter pad

How big is the pad before cutting?

The sheet measures 20x20x1 inch, so it is 20 inches long, 20 inches wide and 1 inch thick.

What does the 20PPI rating mean on this pad?

ALEGI lists the pad at 20PPI, a pore rating given for the whole sheet.

Can the pad be trimmed to fit a smaller filter?

Yes. The sponge can be cut to the desired size, so a compartment smaller than 20 by 20 inches takes a trimmed piece.

Can this pad be reused after it is washed?

Washing does not end its life: the pad goes back into the filtration system many times, and the same cut piece is reused.

What kind of filtration does the sponge provide?

The high-density sponge structure provides mechanical filtration, and the pad captures particles held in the water.

• Size: 20"x20"x1" (20PPI)
• Specific uses: Filtration
• Can be cut to the desired size
• Can be washed and reused multiple times
• Made of sponge material