I'm not sure how to even tell the difference in just assumed it was rubber
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What brand and year of RV do you have? Easiest way to find out is to pull the inner trim ring off of a vent, they usually leave some hanging down inside, if it is stretchy it is rubber (EPDM) if it has a harder plastic feel to it then it is TPO or PVC.
Aaron
__________________ There is madness to my methods
2015 Coleman CM16FBS(traded) 2016 Concord 300DS
2015 Ford Fusion Hybrid following along
What brand and year of RV do you have? Easiest way to find out is to pull the inner trim ring off of a vent, they usually leave some hanging down inside, if it is stretchy it is rubber (EPDM) if it has a harder plastic feel to it then it is TPO or PVC.
Aaron
It is a 2017 Dutchman voltage 3605 I will check under the trim ring thanks