View cart “Lock Door To Operate Restroom” has been added to your cart. HD Adj. Coupler, 2-5/16″ ball-DISCONTINUED $107.96 $107.96 Add products to the cart to receive a custom quote which will include shipping costs and any discounts. Financing is available–please call. Out of stock Need Help? Contact Us Leave Feedback Contact Us Leave Feedback SKU: TLR1040U Category: Trailer Parts Tags: 2 5/16" Ball coupler, nuconcepts, portable restroom, Trailer Parts Related products $4.00 Add to cart No Smoking $4.00 $4.00 Add to cart $5.00 Add to cart Watch Your Step When You Exit $5.00 $5.00 Add to cart $21.00 Add to cart Battery Box w/Strap $21.00 $21.00 Add to cart $5.00 Add to cart Operating Instructions Single Restroom Unit $5.00 $5.00 Add to cart