This week’s gallery features these new HVACR products: an electronic mixing valve to help combat Legionella bacteria growth; a converter that allows a mini-split system to be controlled by a third-party thermostat; a cooling tower fan retrofit kit; a one-way ceiling cassette for installation between joists; a line of groove fitting adapters for transitioning from PEX to metal piping; a line of channel plate heat exchangers for water chillers and heat pumps; and a boiler tube weld alignment clamp.