For use with Aprilaire model 500.
This is the u-shaped component which encases the Water Panel Evaporator.
Their purpose is to direct any mineral which builds up back into the evaporative panel.
They prevent water from leaving the evaporative section and entering another portion of the humidifier.
This is an aftermarket filter.

Technical Details

Width : 0.75 cm
Height : 0.63 cm

Product Details

ASIN : B00NJ8B7MA