Bard 3.5 Ton Straight Cool Single Phase 60Hz Wall Hung Units deliver reliable, high-capacity cooling for large modular offices, telecom shelters, portable classrooms, cargo facilities, and light commercial applications. Built tough in the USA, these 42,000 BTU self-contained systems feature a bottom return and top supply air configuration for efficient airflow and easy service access. Designed for 208/230V single phase 60Hz power, Bard units are known for their exceptional durability and ability to fit legacy wall openings from installations over 20 years ago. Many models also offer optional backup electric heat strips for supplemental or emergency heating needs. Family owned and operated for over 30 years, we provide fast shipping, honest pricing, and expert technical and warranty support across the full Bard HVAC product line.