Tjernlund Products has a 16-page brochure containing descriptions, selection guidance and basic specifications for the company’s complete line of residential and light commercial products, including exhaust, ventilation, transfer and booster fans. Products covered in the brochure include: UnderAire crawlspace fans, XchangeR reversible basement fans, Radon VAC mitigation products, duct booster fans, AireShare transfer fans, hearth products, draft inducers, side-wall power venters, In-Forcer-powered combustion air intakes, plus interlock controls and accessories. The brochure is available online or by calling 800/255-4208.