Coleman confirms the RoadTrip 285 is a propane grill supplied from a 1 lb cylinder. The current product page does not publish enough connector detail to approve a generic hose from the model name alone.
Open the Coleman product manual for your exact SKU. Use the portable-appliance fitting path only if the manual confirms the same bulk-cylinder adapter interface.
Fuel, model identity, published SKU, and the stated 1 lb cylinder supply.
Open manufacturer sourceA product appears here only when the current manufacturer page supports its intended use. Check the exact model, part identifier when one is published, and current fit information at the source.
We do not have a verified product for this model yet. The model information above is confirmed, but it is not enough to identify a safe general replacement. Use the manufacturer link above and check the missing specifications before buying.