4" O.D. Filters - C-3310M4" O.D. Filters - C-3310MAvailability: 10 in stockSKU: C-3310MManufacturer part number: C-3310M $11.13 Qty: Add to cart Custom wishlist OKAdd to wishlistAdd to compare listEmail a friendPart Number / SKU: C-3310MProduct: 4" O.D. Filters - C-3310MCategory: Filter Cartridges >> 4" O.D. FiltersProduct tags hot tub parts (7713), C-3310M (1)