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"

Experience unmatched power and efficiency with the Castair 10 HP Duplex Air Compressor, designed for rigorous industrial applications. This robust machine features two 5 HP motors, delivering a combined 35 CFM at 175 psi, perfect for high-demand environments where continuous air pressure is a must.
Key Features:
- Dual Power: Equipped with two 5 HP engines, the Castair Duplex ensures reliable operation and redundancy, minimizing downtime even during maintenance periods.
- High Capacity: With a large 120-gallon tank, the D5312HC1-S model offers extended run times and stable air supply, making it ideal for extensive projects.
- Optimal Performance: Operating at a pump speed of 767 RPM, it balances efficiency and durability, reducing wear while maintaining peak performance.
- Convenience: It comes with a pre-mounted starter, simplifies installation and setup, and allows for immediate operation right out of the box.
- Built to Last: Engineered for durability and reliability in the toughest conditions, ensuring a long service life with minimal maintenance requirements.
Whether powering pneumatic tools, HVAC systems, or any industrial application requiring steady and reliable air pressure, the Castair 35CFM Duplex Air Compressor is your go-to solution for high-efficiency compressed air delivery.