Easy Cab Fresh Air Filter to put on.

I bought this FARR Air Filter to put on my Water Tender. It was cheap only $24.95 off EBay and it was new and included the filter. I mounted it on the cab with a heat sheild on the back of it. My Stack does not get that hot cause I can put my hand on it after a long 60 mile drive. The flex hose goes into my interior and hooks into a fan in the side compartment. It sucks the air thru the filter into the fan and blows out in the rear sleeper area. This pressurises the cab with filtered air and keeps the smoke and dust out. I have 2 set ups like this and one worked OK and 2 will be even better. The other system cost $985.00 cause I bought it as a system and needed to put it on fast for the fires. This is a much better price!! Mark H.