The Coleman Hot Tub Spa Water Filter Cartridge Replacement is a new product designed for Coleman hot tubs and spas. Made of paper and plastic, this water filter cartridge measures 4 x 3 inches and is compatible with Coleman brand products. It includes one set of water filter cartridges and is manufactured in China. Perfect for maintaining clean and clear water in your hot tub or spa, this replacement cartridge ensures a refreshing and rejuvenating experience for users.