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The Lennox X6670 is a high-performance MERV 11 replacement filter engineered for the Healthy Climate HCF16-11 and HCF16-10 series
Durable Construction: Built to withstand high-pressure cycling and temperature fluctuations common in demanding heat pump applications
Its compact footprint and genuine OEM construction allow for seamless integration into existing 230V control circuits
Complete Reconditioning: Includes all internal parts required for a full diaphragm section overhaul to ensure a leak-free seal
York S1-331-03668-040 Board 320734-701 The Lennox X6670 is a1stg Circuit Board Kit SSe S1 331 03668 040 S1 331 03668 040 is the direct replacement for S1 331 03668 000