13-1/2" 50SQFT 3OZ SAE CARTRIDGE

Unicel Filters 4000 Series Replacement Filter Cartridge, Size: 50 sq-ft, 4-15/16 Inch Diameter, 13-1/2 Inch, 210 Pleat Count, V-Groove Semi-Circular Handle Top Hole, 2 Inch Female SAE Thread Bottom Hole, 3 oz Material Weight, For Use With: Rising Dragon, Waterway, Dynasty Spas, Packaging Quantity: 4/Case