Koi Pond Filter Media Roll Rigid, 12" x 72" (6 ft)

Koi Pond Filter Rigid Pad Media 12.5" x 76" (6 ft)

Koral Filters Koi Pond and Aquarium Filter Media Roll - 12 Inches by 72 Inches by 1.25 Inches (6 ft) - Cut to Fit - Durable - Fish and Reef Aquarium Compatible - Clear and Clean Water

Aquatic Experts Classic Koi Pond Filter Pad COARSE – Black Bulk Roll Pond Filter Media, Rigid Ultra-Durable Latex Coated Fish Pond Filter Material US, (3/4" - 1" x 12" x 72")