Key Features

• COMPATIBLE MODELS – Replacement for Waterway 817-4050, Teleweir 50, Pleatco PWW50L, PWW50L-M, 817-4050, Filbur FC-0172, Unicel 4CH-949, PWW50L-M, 817-4050, 25252, SD-01143 filtration cartridges.
• DIMENSIONS FOR RELIABLE FIT – This 13-1/16" x 5" cartridge is engineered to fit seamlessly into compatible spa filtration systems, supporting consistent performance without leaks or gaps.
• TRILOBAL DIRT-LOCK MEDIA – Advanced trilobal fibers capture up to 40% more debris than standard round fibers, trapping dirt, hair, leaves, and fine particles while maintaining maximum water flow.
• TESTED TO NSF 50 STANDARDS – Independently tested to NSF protocols for performance and durability, supporting consistent water clarity and reliable filtration.
• ENGINEERED FOR CONSISTENT FLOW – Internal high-flow core delivers steady water circulation, protecting pump performance without restricting pressure or causing heater issues like some filters.

Specifications