Thorn Air Pressure Switch Packed Assy 402A2853 This is used on Apollo Fanfare 15/30 - 30/50 - 15/30I - 30/50I - 15/30SI - 30/50 SI 40SI
Ref: 402A2853
Thorn Air Pressure Switch E.A 402A3410
This is used on the Apollo Fanfare 15/30I and 30/50S - 40S.
Apollo Later 30S to 50S and 30SI to 50SI.
Orion 30SI to 60SI
Ref: 402A3410
Thorn Pressure Switch 307S869/307A833
This is used on the Olympic 20/35F. Olympic 38/50F
Ref: 307S869