Pentair CNC Plus 420 Replacement Filter Cartridge | R173576 Prismo Filtration area: 25 sq ft

Filtration area: 25 sq ft

engineered for consistent performance and long-term reliability

Its energy-saving low-flow design reduces power consumption while maintaining optimal heating performance

Water intrusion or wear over time can cause button failure

Their suction outlet assemblies integrate with Hayward hydraulic components for consistent performance

Pentair CNC Plus 420 Replacement Filter Cartridge | R173576 Prismo Filtration area: 25 sq ftWhat This Part Is Used For Pentair R173576 Cartridge Replacement CNC Plus 420 is a replacement filter cartridge for Clean and Clear Plus 420 systems. It filters circulating pool water to remove debris and suspended particles. Why This Part Matters Over time, cartridges lose efficiency and restrict system flow. Installing a new cartridge restores proper filtration and consistent turnover rates. Clean filtration supports balanced water chemistry and