I have used scrap 2 by 8 treated lumber with a 45 degree cut on one end. About 2 feet long. Used for years. Effective and cheap. And remember, you cannot run a RV refrigerator when it is not level. Makes it quit working and expensive to repair. Hope this helps.
ronspradley
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'95 Monaco Windsor DP 32' Cummins 5.9
Toads '96 Tracker 4x4, '06 Honda CRV AWD
Life's too short to drink diet soda.
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