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Is a separate vent limiter required
525" WC to match the original manufacturer specifications for proper airflow verification
Multi-Speed Versatility: Features 3-speed taps for optimized CFM control and system balancing
while the sleeve bearing design provides quiet operation in vertical or horizontal mounting positions
Marley Engineered Products MD26 Thermostat 319825-402 Is a separate vent limiterThe Marley Engineered Products MD26 Thermostat is a high capacity, double pole single throw (DPST) line voltage control designed for heavy duty resistive loads. Engineered specifically for professional HVAC installations, this manual line voltage thermostat features a robust snap action switch that ensures reliable cycling and a positive "OFF" position for complete circuit disconnection. With a substantial 22 Amp rating at 120V, 208V, and 240V (and 18