General description Your Hot Tub's Lifesaver: The Premium Type VI Replacement Pool Filter is compatible with all SaluSpa inflatable hot tubs and spas. Made of durable materials, it withstands seasonal changes and frequent use, providing a long-term, cost-effective solution for maintaining clean spa water. Technical specifications Dimensions: 4.2" L x 4.2" W x 3.1" H (10.7 cm L x 10.7 cm W x 7.9 cm H) Weight: 0.35 lb (0.17 kg) Material: Plastic Shape: Rectangle Installation Easy installation with a secure top closure Shrink-wrapped with an insertable card for convenience Usage SaluSpa hot tub replacement filters help you keep your spa water clean, providing an engaging spa experience for you, your family, and friends.