Comfortmaker now offers a 13 SEER single-phase package air conditioner. The APK Series comes in 3- to 5-ton models. The APK models were designed for markets where high-efficiency standards are required. They feature a single scroll compressor. Available in 208 to 230 volts, other features include externally-mounted gauge ports, filter driers, coil guards and more.

International Comfort Products, P.O. Box 128, Lewisburg, TN 37091.