Front mount helms are drop-in replacements for SeaStar¨ Helm. Compact design Built-in lock valve for positive rudder lock Integral relief valve for over-pressure protection Compatible with Teleflex SeaStar cylinders, hoses and oil 3/4" tapered stainless steel shaft Easily accessible lock valve and shaft seal for replacement Convenient front of dash fill 1/4" NPT fitting for 3/8" tube, complete with elbow fittings Relief valve pressure: 1000 psi