ProDryers.com AnswersAnswer
Feb 10, 2025 - 11:38 AM
Thank you for your question. According to the manufacture, it refers to the “L” dimension of a concealed valve. It is the horizontal distance from the centerline of the valve body to the finished wall. In most installations, it usually equals wall thickness + 2-3". If you have any further technical questions, we recommend reaching out to the manufactures tech support directly at (800)-982-5839. If you need further assistance, please feel free to contact us at customerservice@prodryers.com or (888) 503-7937.
