Montana uses one with a hinge that is secured by "twisting" the "tail" on the hinge. The hinge just slides in to the part that is permanent on the 5th wheel. A very easy replacement once getting comfortable on the roof. The cover should cost about 13 to 17 dollars. Most RV parts shops have them in stock cheaper than CW. The following link shows the hinge type. Ventline is the one that fit mine. The second link shows the hinge in another view. The best way is to go up and take off the present vent and bring it in with you. (on a day without rain of course).
http://www.jcwhitney.com/webapp/wcs/...atalogId=10107
http://www.rvshop.com/catalog/produc...e29e0b2e0ba141
Hybrid Mode
