Description
The Japanese Filter Mat is widely regarded as one of the best biological filtration media available for koi ponds, water gardens, and aquaculture systems. Its firm, rigid structure provides an enormous surface area for beneficial bacteria to colonize, delivering exceptional biological filtration and long-term water quality stability.
Unlike softer or loosely woven mats, this high-density Japanese matting maintains its shape, resists clogging, and will never need to be replaced under normal use. It sinks naturally, making installation inside filters, waterfalls, or custom chambers easy and reliable.
This oversized sheet offers excellent versatility and can be cut to fit virtually any pond filter design.
Note: This is a large item and
does not qualify for free shipping.Key Features
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Premium biological filtration media for ponds
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Very firm and rigid—holds shape and resists deformation
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Extremely long-lasting — never needs replacement
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Sinking material for easy placement inside filter chambers
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Can be cut to fit any filter system
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Ideal for koi ponds, aquaculture, and high-bioload environments
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Dimensions: 79″ × 39″ × 1.5″
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