Shipping
- Complimentary ground shipping within 1 to 7 business days
- In-store collection available within 1 to 7 business days
- Next-day and Express delivery options also available
- Purchases are delivered in an orange box tied with a Bolduc ribbon, with the exception of certain items
- See the delivery FAQs for details on shipping methods, costs and delivery times
Returns and Exchanges
- Easy and complimentary, within 14 days
- See conditions and procedure in our return FAQs
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!
Mon-Fri 6:00 am to 5:00 pm CST
Live Chat feature available on the weekend
Call To Us Free: 877 388 4111
"Over 50 Years of Experience"

Castair I15312HC3-S
15 HP Two-Stage Horizontal Air Compressor – 120-Gallon Tank (3-Phase, Extra Heavy-Duty, Ultra-Low RPM)
The Castair I15312HC3-S is a high-capacity, industrial-grade horizontal air compressor built to excel in continuous-use, high-demand environments. Featuring a robust 15 HP motor, ultra-low 470 RPM pump, and a 120-gallon horizontal ASME tank, this 3-phase unit combines long-term reliability with superior air delivery and reduced operating noise.
Key Features
- Cast iron two-stage pump operating at ultra-low 470 RPM for cooler, quieter performance
- 120-gallon horizontal ASME tank with powder-coated finish for durability
- Beltguard-mounted aftercooler for improved air temperature and moisture control
- Disc and spring valves paired with four-ring pistons for optimal efficiency
- Pre-wired and factory-mounted magnetic starter simplifies installation
- Centrifugal unloader system for smooth, load-free startups
Technical Specifications
- Horsepower: 15 HP
- Voltage: 3-Phase, 208/230/460V
- Tank Capacity: 120 Gallons (Horizontal)
- Max Pressure: 175 PSI
- Air Delivery: 60.3 CFM @ 0 PSI / 49.0 CFM @ 175 PSI
- Pump RPM: 470
- Dimensions (LxWxH): 69" x 24" x 50"
- Weight: 1280 lbs