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High-Intensity Warmth with Contemporary Dual-Element Engineering
Verify correct horsepower match before installation
Compatible with Napoleon direct vent propane systems
Protect your family
Our Enviro Mesh covers are built to withstand outdoor conditions while remaining easy to manage season after season
Pentair CNC Plus 520 Replacement Filter Cartridge | R173578 Aluminum High-Intensity Warmth with Contemporary Dual-ElementWhat This Part Is Used For Pentair R173578 Cartridge Replacement CNC Plus 520 is a replacement filter cartridge for Clean and Clear Plus 520 filtration systems. It removes debris and fine particles during normal circulation. Why This Part Matters A clogged or aging cartridge reduces filtration performance and increases system pressure. Replacing it restores proper water clarity and balanced flow. Clean cartridges help protect pumps and heaters from