SpacePak ESP-K Series
NEW PRODUCT ANNOUNCEMENT: SpacePak’s new DX Air Handler, the heart of the Small Duct High Velocity air distribution system, is now in production and shipping from SpacePak’s factory in Farmville, NC!
SpacePak, a Mestek company, is proud to release the new ESP K-Series to our customers and loyal SpacePak certified contractors. These made-in-the USA units are equipped with a refrigerant leak detection system, follow all of today’s low GWP refrigerant requirements, and are compatible with the two most popular A2L refrigerants (R32 and R454B).
SpacePak’s new ESP K-Series is an A2L-compliant solution for a greener HVAC future. Built for performance, designed with sustainability in mind.
*NOTE: SpacePak still has a limited quantity of ESP J-Series R410A air handlers in stock, but supplies are going fast.
Below is a compatibility chart for existing units and what new SpacePak K-Series units will take their place.

As a reminder, SpacePak’s Pre-Sale Support team is always here to help with load calculations and rough equipment/material lists at presalesupport@spacepak.com.
Download SpacePak Product Literature links:
- SpacePak Submittal Sheet: ESP-K (horizontal)
- SpacePak Submittal Sheet: ESP-KV (vertical)
- SpacePak Installation & Operation Manual
- SpacePak Sales Flyer
Contact your HVAC RepCo Account Manager to become a SpacePak distributor.