9-11/16 X 18 SYSTEM 3 REPL.9-11/16 X 18 SYSTEM 3 REPL.Availability: 10 in stockSKU: FG-3009Manufacturer part number: FG-3009 $15.61 Qty: Add to cart Custom wishlist OKAdd to wishlistAdd to compare listEmail a friendPart Number / SKU: FG-3009Product: 9-11/16 X 18 SYSTEM 3 REPL.Category: Filter Cartridges >> 9" O.D. FiltersProduct tags hot tub parts (7713), FG-3009 (1)