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].
Also Live Chat is available.
Call to speak with our air compressor experts! We offer product assistance, advice and quotes on quality products!
Let us help you design the air system that best suits you!
Open 7 days a week, 6:00 AM to 6:00 PM CT
Prefer to type? Live Chat is available too.
Call To Us Free: 877 388 4111
"Over 50 Years of Experience"

The Castair 20 HP (2x10) Duplex Air Compressor is engineered for high-performance and reliability in demanding industrial environments. Featuring a robust 20 HP duplex design, this air compressor delivers an impressive 70 CFM at 175 PSI, ensuring a steady and powerful air supply for various applications.
Key Features:
-
Powerful Duplex Configuration: Equipped with two 10 HP pumps, the Castair Duplex Air Compressor offers reliable and efficient performance with a total of 20 HP.
-
High Air Delivery: Provides 70 cubic feet per minute (CFM) at a high pressure of 175 PSI, making it suitable for heavy-duty applications requiring substantial airflow.
-
Durable Construction: The 240-gallon tank is built for durability and extended operation, accommodating high volumes of compressed air while minimizing downtime.
-
Optimal Pump Speed: With a pump RPM of 758, this compressor operates smoothly and efficiently, ensuring consistent performance and reducing wear and tear.
-
Mounted Starter: Includes a pre-mounted starter for easy installation and quick setup, allowing for a hassle-free operational start.
-
Voltage Compatibility: Designed for 460V, 3-phase, 60Hz power supply, providing flexibility in various industrial settings.
Benefits:
-
Enhanced Efficiency: The duplex configuration ensures continuous operation and minimizes the risk of downtime, as one pump can handle the workload while the other is off for maintenance.
-
Consistent High Pressure: Delivers consistent and reliable high-pressure air, ideal for demanding applications that require a steady air supply.
-
Large Capacity: The 240-gallon tank allows for extended operational periods between tank refills, reducing the need for frequent maintenance and ensuring uninterrupted performance.
-
Reduced Maintenance: The low RPM of 758 helps in reducing the overall wear and tear on the compressor, leading to longer service life and fewer maintenance requirements.
-
Ease of Installation: The included mounted starter simplifies the installation process, making it quicker and easier to get the compressor up and running.
Whether you're looking to upgrade your current setup or invest in a new compressor for your industrial operations, the Castair 20 HP Duplex Air Compressor offers the power, efficiency, and reliability needed to keep your operations running smoothly.