Non return valves by Lalizas Select::Non return valve with 1'' outlet 90° angle 31344 ) THROTTLE AND SHIFT LINKAGE Extras::Boat,Console & Tank, Bolster Tube, Bench Seat, T Top, Hydraulic Steering & Trailer ) THROTTLE AND SHIFT LINKAGE (ELECTRIC) Engine Numbers [7209533 THRU 0A730006] Canada 50HP 50202C 1972 Gearcase 50 HP Manual Start Code Description 31344 Non return valve with 1'' outlet 90° angle 31345 Non return valve with 3 4 or 1'' outlet 31346 Non return valve with 3 4'' outlet 90° 31347 Non return valve with 1 1 2'' outlet 90° angle 31348 Non return valve with 1 1 2'' or 1 1 4'' outlet Their outlet connection allows the use of either a Ø ¾ 1” or a 1 ¼ 1 ½” hose