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Laing has a long-standing reputation in spa pump solutions
Durable materials and proven designs support long-term serviceability in busy pool and spa environments
It helps prevent backflow in the plumbing loop and maintains proper direction of water flow
making it a premier choice for luxury residential decks and high-end commercial verandas
as it provides excellent ventilation within ceiling pockets (flush-mount requires an optional 316 stainless steel frame)
Pentair CNC Plus 520 Replacement Filter Cartridge | R173578 Aluminum Laing has a long-standing reputationWhat 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
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