15-3/16'' X 18'' SYSTEM 3 REPL. $13.77 /EACH (1)15-3/16'' X 18'' SYSTEM 3 REPL. $13.77 /EACH (1)Availability: 10 in stockSKU: FG-3015Manufacturer part number: FG-3015 $17.91 Qty: Add to cart Custom wishlist OKAdd to wishlistAdd to compare listEmail a friendPart Number / SKU: FG-3015Product: 15-3/16'' X 18'' SYSTEM 3 REPL. $13.77 /EACH (1)Category: Filter Cartridges >> 13" O.D. FiltersProduct tags hot tub parts (7713), FG-3015 (1)