Rain cap for Reese Towpower #21141 adjustable hitch

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This cap seals out rain and snow from entering the adjustable drop or rise receiver tube of my Reese TowPower model #21141 drawbar. Although some water and debris may still seep in through the holes along the sides, this protective covering significantly reduces the amount that would normally enter if the top were left open. To secure it in place, I applied a strong bond using black RTV sealant, as it was readily available on hand.