Recreational vehicle sewer coupling

The ornamental design for a recreational vehicle sewer coupling, as shown and described.

FIG. 1 is a side elevational view of a recreational vehicle sewer coupling showing my new design the opposite being a mirror image of the side shown;

FIG. 2 is a front elevational view thereof; and

FIG. 3 is a bottom plan view thereof.

Patent	Priority	Assignee	Title
D324727,	Oct 11 1988		Motorhome bayonet ground waste connection
D325075,	Oct 11 1988		Motorhome connection
D326507,	Oct 11 1988		End cap for a motorhome waste line
D820417,	Jan 30 2017		Hose coupling
D835243,	Apr 09 2017	KRAUSZ INDUSTRIES LTD	Pipe coupling with handle
D879258,	Apr 12 2018	Nelson Irrigation Corporation	Quick connection coupler

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