No image available
+5% Tax • Shipping calculated at checkout.
U.S. Duties/Taxes, if applicable, may be due at time of delivery.
Pickup available at 75 Blue Mountain St #3
Usually ready in 24 hours
Ensure the safe and efficient operation of your heating and cooling equipment with this professional-grade low-pressure cutout switch. As a critical air-proving component, this pressure sensor monitors system airflow and internal pressure levels to maintain a safe operating environment. When it detects a drop in pressure below the calibrated 250 setpoint, the switch opens the electrical circuit, automatically shutting down the appliance to prevent damage or unsafe operation. This replacement air pressure switch is an essential safety component for furnace repair, air handler maintenance, and ensuring proper ventilation in residential and commercial climate control systems. Designed for precision and reliability, it serves as a vital safeguard against system failure.
Our team is happy to help you verify compatibility before you order. We'll confirm it fits your specific furnace model.
1-778-759-9864Mon–Sat 8AM–5PM PT · Or email parts@bcfurnace.com
Compatible parts and related replacements
Yes, the 021-884 is a genuine OEM, or a factory replacement manufacturer approved part. We source all Air Pressure Switches from authorized distributors to ensure exact-fit compatibility. This Air Pressure Switch is backed by our 100% compatibility guarantee — if it doesn't fit your furnace, we'll make it right.
The easiest way is to match the part number (021-884) with your furnace model number. Visit the homepage and enter your model number in the search bar — our system will show all compatible Air Pressure Switches for your specific unit. You can also call our technicians at 1-778-759-9864 for free compatibility verification.
Most Air Pressure Switches including the 021-884 ship within 1–2 business days from our warehouse. We ship across Canada and the United States, and worldwide, with tracking on every order. For urgent furnace repairs, contact us at 1-778-759-9864 for expedited shipping options.
Yes! Local pickup is available at our Coquitlam, BC location: 75 Blue Mountain St #3. Air Pressure Switches orders are usually ready within 24 hours. Call us at 1-778-759-9864 to confirm the 021-884 is in stock before visiting.
Still not sure this is the right part? Call 1-778-759-9864 and we will check your model number with you.
Looking for more Air Pressure Switches?
