When you need a ventilation solution, the Broan L100L High Capacity Inline Ventilation Fan is the x-factor in any ducting equation.
It features six-inch duct connectors on either side so it installs in line. It has a durable 20 gauge steel housing and works well in kitchens.
With a GFCI branch circuit, it is UL listed for use over bathtubs and showers. Add an electronic speed control to give you full control over the ventilation power and noise level.
This vent fan gives you options, something you need whether remodeling ...