Tired of dust inside your camper? With this setup you can help minimize the dust in the shell when its open or closed. 160+ CFM fan @46db. Fan is IP68 rated. Fan can have a speed controller attached if you want to slow it down for less noise, It uses a common 3 pin wiring setup. Mounts using our custom CNC made in the USA aluminum bracket. We have tested this in heavy dust and some rain (as much as San Diego can give me) and no dust/water came in. However, if you live in a heavy rain area your results may vary. 

Includes:

1 filter cover with gasket
1 washable filter
1 custom cnc aluminum adapter
4 stainless bolts
4 stainless washers
4 stainless nuts
1 stainless stud
1 fan
1 quick turn knob
1 rubber washer

For install, use the aluminum adapter as a template for the center hole and 4 corner holes. using a 4" hole saw drill a hole. if you dont have one of those you can use a trim router and use the adapter as a guide to create the hole. The fan sides inside so make sure you have room. 

Fan has a limited warrantee of 30 days from purchase since i have no control over the fan.