4" O.D. Filters - 4CH-234" O.D. Filters - 4CH-23Availability: 10 in stockSKU: 4CH-23Manufacturer part number: 4CH-23 $20.37 Qty: Add to cart Custom wishlist OKAdd to wishlistAdd to compare listEmail a friendPart Number / SKU: 4CH-23Product: 4" O.D. Filters - 4CH-23Category: Filter Cartridges >> 4" O.D. FiltersProduct tags hot tub parts (7713), 4CH-23 (1)