We are. C&L Supply HVAC and Plumbing. a new division of. Munch’s Supply. the leading wholesale distributor of Heating, Ventilation and Air Conditioning (HVAC) equipment, parts and supplies servicing the Chicago, Northwest Indiana and Michigan markets at 12 branch locations. But that’s not all. Through acquisition, we also operate five Tommark branches in Michigan, seven O’Connor branches in Oklahoma, Nebraska, Kansas, Iowa and Missouri, three Com...