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"

Castair I20GH3HC2
20 HP Gas-Powered Two-Stage Horizontal Air Compressor (Honda Engine)
The Castair I20GH3HC2 is a heavy-duty gas-powered air compressor built for serious industrial and remote job site demands. Powered by a 20 HP Honda GX630 engine and featuring a rugged two-stage cast iron pump, this unit delivers exceptional airflow, reliable performance, and quiet operation — making it ideal for mobile service trucks, agricultural use, and field repair operations where electric power is not available.
Key Features
- Heavy-duty cast iron, two-stage V-twin compressor pump
- Gas-powered 20 HP Honda GX630 engine with electric start
- Low 885 RPM pump speed for cooler, quieter operation and extended pump life
- Horizontal 30-gallon ASME-certified powder-coated air tank
- Factory-installed centrifugal unloader for loadless startup
- Automotive-style air filter for clean intake and reduced noise
- Copper discharge tube and fully enclosed metal belt guard for safety and durability
Technical Specifications
- Horsepower: 20 HP (Honda GX630)
- Start Type: Electric
- Tank Capacity: 30 Gallons (Horizontal)
- Max Pressure: 175 PSI
- Air Delivery: 55.0 CFM @ 0 PSI / 43.6 CFM @ 175 PSI
- Pump RPM: 885
- Dimensions (LxWxH): 50" x 34" x 43"
- Weight: 640 lbs