These seacocks will enable your engine to function as a bilge pump in an emergency. Groco's Bronze Full-Flow Safety Seacocks feature an NPT-threaded side port for permanent installation of an in-line ball valve or other threaded component. Enables engine to function as a bilge pump in an emergency. All-bronze castings with #316 stainless steel ball and stem, PTFE seats and seals. Handle may be relocated to either side of the valve body and includes a square hole to accept a standard ratchet (helps access hard-to-reach valves and ease actuation of difficult-to-operate valves). The tri-flange base has a bolt pattern that matches most popular brands to make retrofits easier. The top and side fittings are NPT (tapered thread) and bottom fitting is NPS (straight thread).