Pentair Cartridge 520 sq. ft. | Clean & Clear Plus Filter 520 sq. ft. | R173578 PD165 Pentair Sand Dollar SD40 Plastic

Pentair Sand Dollar SD40 Plastic clamp assembly

Quantity Included Set of 2 Also Known As PKG188Z Fits Into

serviceable union joint that allows the pump or filter to be disconnected from the plumbing without cutting pipe

OEM Brand Product Name Part Number Notes Vita Spas — PVT 50W Injection-molded knob handle required — not included with Unicel replacement

Pentair Cartridge 520 sq. ft. | Clean & Clear Plus Filter 520 sq. ft. | R173578 PD165 Pentair Sand Dollar SD40 PlasticThe Pentair R173578 is the OEM replacement filter cartridge for the Clean & Clear Plus 520 sq. ft. cartridge filter, restoring full filtration capacity to one of Pentair's largest residential cartridge filter systems. IMPORTANT: 4 CARTRIDGES REQUIRED PER FILTER The Clean & Clear Plus 520 sq. ft. filter requires 4 of these cartridges for a complete service. This listing is for one (1) cartridge. Order 4 to complete a full replacement set. IMPORTANT: