Lennox replacement coils. Replicating all Lennox models for exact fit and max performance...
Skymark Replacement Coils — Made to fit. Built to Last.
With one of the most comprehensive OEM coil drawing databases in the industry, Nationwide Coils can build virtually any Skymark replacement coil to precise specifications, matching exact tube size, circuiting and fins per inch. Built with highest-grade materials that are even more durable than the OEM, our Skymark replacement coils deliver dependable operation and maximum service life in even the most demanding HVAC applications.
NOTE: Nationwide Coils Enterprises, LLC, provides aftermarket replacement coils designed to fit Skymark equipment. Skymark does not manufacture, sponsor, authorize or endorse our products. All trademarks used are for identification purposes only.

Building commercial Skymark replacement coils for every unit series, right here in the U.S.A.
D3SK
AC
CN
D4HH
DH
Skymark Replacement Coils
Yes! In fact, Nationwide Coils specializes in microchannel upgrades. Over the years, we've converted countless microchannels to the more durable and reliable copper tube-and-fin design.
Even if the original Skymark unit or coil is obsolete, Nationwide Coils can often manufacture a replacement coil by matching critical details such as overall dimensions, tube size, circuiting, fin spacing and connection locations.
Even if the original unit tag or coil model number is missing, a replacement coil can often be engineered using physical dimensions, connection locations, tube size, circuiting, fin spacing and other specifications from the original coil.