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 sales@penryair.com.
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 sales@penryair.com.
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"Over 50 Years of Experience"
MDH Series Heatless Desiccant Air Dryer
The MDH Series is one of our most compact and efficient desiccant air dryer solutions. Engineered for OEM applications, this miniature dryer is ideal for pairing with small, fractional horsepower air compressors — making it perfect for tight spaces and energy-conscious systems.
With 6 model options available, you can easily match the right unit to your specific application and minimize energy loss without compromising performance. Designed with a solid-state timer and built-in memory, the MDH Series ensures reliable and consistent drying cycles.
Key Features:
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Miniature, compact design ideal for OEM use
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Capacity range: 0.4 to 3.2 SCFM
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Standard outlet dew point: -40°F (-40°C)
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Operating pressure: 50 to 120 PSIG (custom options down to 30 PSIG)
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Max inlet temperature: 120°F
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Max pressure: 120 PSIG
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Voltage: 120 V
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Meets ISO 8573.1 Class 2 standards