This 4”, 175 cfm Vortex Powerfan combines professional quality design
with convenient features that make it a great choice for indoor
gardeners of all stripes. Long-time ventilation do-it-yourselfers and
first-timers alike are sure to appreciate features like
standard-measurement sizing, sound- and rustproof epoxy finish,
no-maintenance balanced motors, simple installation, and solid steel
construction. Vortex Powerfans boast a ten-year manufacturer’s
warranty.