19.5 inches on my 2015. I believe they are the same through current model.
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2015 fr3 30DS, added 2nd A/C-Heat Pump, both A/C have EasyStart, Auto Transfer Switch, CHF with Hellwig Links, Progressive Power Management, TPMS, Blue Ox True-Center, Koni Shocks, HID Headlamps, LED Foglamps, Pioneer Stereo, Keyless entry, Auxiliary Cooling Fans for A/C Condenser, dashcam front-rear, Yokohama Tires, air ride seats, onboard air compressor, 3000 watt hybrid Victron inverter Venus Generator Control, centramatic wheel balancers
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