4" Barometric Damper (RC-STD Draft Control with Collar)

The Field Type RC Oil Draft Control comes standard on many top brands of oil and coal-fired heating equipment. Factory-calibrated for easy adjustment, it allows installers to fine-tune draft settings according to furnace or boiler manufacturer specifications. Designed for precise control within a range of .02? to .08?, this highly sensitive unit should be adjusted using proper instrumentation during installation to ensure optimal performance.