This week's gallery highlights the following HVACR products: a residential noncondensing gas furnace; a cloud-based construction management system for contractors of all sizes; an injector for eliminating acid in refrigeration and air-conditioning systems; two models of stainless-steel backdraft dampers; a wall sleeve for condensate drain hose in ductless mini-split evaporators; fixed digital gas detectors for industrial refrigeration applications; and a design and parts guide for polypropylene piping systems.