This is a optional Outerwears electric motor Pre-filter, and is intended for use with electric motors that are between 2¼" diameter, and 3½" long. This electric motor filter is secured with elastic on one end, and a zip tie on the other. Now you can protect your motor from dust, small debris, and splashed water as air flows through!

Specifications:
Base Diameter 1: Up to 2 1/4 Diameter
Height: Up to 3 1/2 Long
Material: Water Repellent