Shipping
- In-stock items are processed within 1 to 2 business days and typically delivered within 5 to 7 business days in the U.S.
- Factory-direct items ship on the manufacturer lead time shown on the product page.
- Tracking information is provided for every order.
- Shipping options and costs are calculated at checkout. See our Shipping Policy for details.
Returns and Exchanges
- Return eligibility, timeframes and any restocking fees are listed in our Returns, Exchange and Refund Policy.
- Questions about a return? Call 1-877-388-4111.
Questions?
Call 1-877-388-4111 or email [email protected].
Availability/Lead Time
If an item is out of stock, we provide an estimated arrival time at Penry Air. This estimate is based on information from the manufacturer and our experience with ordering the item. Please note that the actual lead time may vary. The estimate does not include shipping time to your location.
If you have any questions about availability, please call 1-877-388-4111 or email [email protected].
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"Over 50 Years of Experience"

Introducing the Castair 20 HP (2x10) Duplex Air Compressor – a robust and efficient solution designed for demanding industrial applications. Engineered to deliver exceptional performance, this duplex air compressor features dual 10 HP pumps, ensuring a reliable and continuous supply of compressed air. With a powerful output of 66 CFM at 175 PSI and a large 120-gallon tank, it's perfectly suited for high-volume operations and heavy-duty tasks.
The Castair Duplex Air Compressor is equipped with a mounted starter for ease of installation and operation. Operating at a pump RPM of 570, it maintains optimal efficiency while delivering consistent air pressure. This model is ideal for businesses that require uninterrupted airflow for their tools and machinery.
Key Features:
- Powerful Performance: Dual 10 HP pumps provide a combined 20 HP output, delivering 66 CFM at 175 PSI.
- Large Capacity Tank: A 120-gallon tank ensures ample air storage and reduces the frequency of compressor cycling.
- Reliable Operation: Pump RPM of 570 offers efficient and smooth performance, extending the lifespan of the compressor.
- Mounted Starter: Simplifies installation and operation, making it user-friendly and convenient.
- Durable Construction: Built to withstand the demands of heavy-duty use and continuous operation.
Benefits:
- Enhanced Productivity: The high CFM and PSI ratings mean you can power more tools and equipment simultaneously, improving overall efficiency in your workspace.
- Consistent Air Supply: The large tank capacity minimizes interruptions and ensures a steady flow of compressed air for extended periods.
- Cost-Effective Operation: The efficient RPM and robust construction reduce maintenance needs and operational costs over time.
- Ease of Use: The mounted starter streamlines setup and reduces downtime, making it easy to integrate into your existing system.
Whether you're upgrading your existing compressor or setting up a new industrial setup, the Castair 20 HP Duplex Air Compressor offers reliability, power, and efficiency to meet your high-performance needs.