4" O.D. Filters - 4CH-20PL4" O.D. Filters - 4CH-20PLAvailability: 10 in stockSKU: 4CH-20PLManufacturer part number: 4CH-20PL $23.29 Qty: Add to cart Custom wishlist OKAdd to wishlistAdd to compare listEmail a friendPart Number / SKU: 4CH-20PLProduct: 4" O.D. Filters - 4CH-20PLCategory: Filter Cartridges >> 4" O.D. FiltersProduct tags hot tub parts (7713), 4CH-20PL (1)