Available with R-410A refrigerant, the S-Class™ SSB/SPB line of commercial air conditioners and heat pumps is designed to help create a better indoor environment while reducing energy bills. With efficiency ratings up to 16.5 SEER and 8.5 HSPF, the line features a two-stage compressor, reducing temperature swings while providing the proper amount of cooling and dehumidification.

Lennox, Dallas, TX; 800-953-6669; www.lennox.com

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