K&F Premium Filter Pouch with 4 Filter Slots

K&F Premium Filter Pouch with 4 Filter Slots slot filter Key Features of the PolarPro Helix 4-Slot Filter Case · Built for use with the Helix MagLock™ Filters · Securely holds 4 Helix filters · Built-in microfiber slot machine concert FilterLock is a patented 2-piece system designed for use with 1-inch filters that eliminates air leakage at the filter slotdoor to improve indoor air

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