Achilles Replacement Military Valve Gallery Description Replacement military valve for Riken and Achilles boats.Six-hole mounting pattern holds valve in a recessed rubberboot. Standard size replacement. Screws not included.Outside diameter of the valve flange is 2-3/16 which may fit better in some valve boots. Quantity: $65.00 Add to cart Buyers’ reviews (0) Write your review No reviews. Be the first to write one!