This is the standard blue Matala pad used by Helix Life Support in the Helix Pond Skimmer and the Helix Small Static Filter. This blue Matala pad is 14.5" in diameter and approximately 1.5" thick, a fairly dense filter material. This replacement filter pad can be removed from the pond skimmer or pond filter for easy cleaning.
Helix Skimmer uses (1) Helix Blue Matala pad
Helix Static Filter uses (3) Helix Blue Matala pads