1-778-759-9864
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BCFurnace

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BCFURNACE

021-865

$1.00

+5% Tax • Shipping calculated at checkout.

U.S. Duties/Taxes, if applicable, may be due at time of delivery.

Name

SWITCH,DIFFERENTIAL PRESSURE, SPDT, 32-1

1units available

Pickup available at 75 Blue Mountain St #3

Usually ready in 24 hours

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Not sure this fits your furnace? Call us — we're happy to help

Product Details

Description

This high-performance Differential Pressure Switch is an essential air-proving component designed for HVAC and commercial cooling systems. Engineered to monitor the pressure variance between two points, this switch ensures optimal airflow and system safety by detecting changes across filters, coils, and fans. Featuring a Single Pole Double Throw (SPDT) contact arrangement, it allows for versatile integration into control circuits for both signaling and safety shut-off functions. Whether used for verifying blower operation or monitoring air filter status, this durable pressure sensor provides accurate, reliable performance to maintain equipment efficiency and prevent costly downtime.

Specifications

Type
Air Pressure Differential Switch
Size
Standard Control Module
Application
Commonly used in commercial HVAC units, centrifugal chillers, air handling systems, and industrial ventilation to monitor airflow and pressure differentials.
Specifications
SPDT (Single Pole Double Throw) switching mechanism, differential pressure sensing, air-proving safety function.

Not sure this is the right part?

Our team is happy to help you verify compatibility before you order. We'll confirm it fits your specific furnace model.

1-778-759-9864

Mon–Sat 8AM–9PM PST · Or email parts@bcfurnace.com

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Frequently Asked Questions

Is the 021-865 a genuine OEM part?
Yes, the 021-865 is a genuine OEM replacement part manufactured by BCFurnace. We source all Air Pressure Switches from authorized distributors to ensure exact-fit compatibility. This Air Pressure Switches is backed by our 100% compatibility guarantee — if it doesn't fit your furnace, we'll make it right.
How do I know if the 021-865 is compatible with my BCFurnace furnace?
The easiest way is to match the part number (021-865) with your furnace model number. Visit the BCFurnace page on our site 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.
How fast can I get the 021-865 shipped?
Most Air Pressure Switches including the 021-865 ship within 1–2 business days from our warehouse. We ship across Canada and the United States with tracking on every order. For urgent BCFurnace repairs, contact us at 1-778-759-9864 for expedited shipping options.
Can I pick up the 021-865 at your store?
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 021-865 is in stock before visiting.

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