Waterco Cartridge Element [Opal Opal XL 180 sqft] (701038) is a practical replacement component from Waterco USA designed for pool and spa service applications where the right fit and dependable function matter. This part supports filtration performance, proper sealing, and dependable system service, helping keep related equipment easier to maintain and more reliable during regular use. Use this item when repairing, rebuilding, or replacing a matching component in an existing pool or spa system. Matching the part number, size, style, and equipment series before installation is recommended to help ensure proper compatibility. Whether the repair involves filtration, plumbing, water movement, air control, or general equipment service, this replacement part gives technicians and homeowners a straightforward way to restore performance without replacing a larger assembly. Genuine Waterco USA replacement part for pool, spa, or equipment repair applications Part number 701038 helps confirm the correct item before ordering Useful for filtration performance, proper sealing, and dependable system service Helps restore proper operation when the original component is worn, damaged, or missing A practical choice for service technicians, repair shops, and hands-on equipment owners