370-050-B1 B&C output board (red), replaces 370-050 (green) (A0-E07-003) , FOR LEVEL SWITCH ON BOARD USE 200-003 TUBING AND USE 200-002 FITTING TO CONNECT TO AIR TRAP BLACK TUBE. All parts come with a minimum 30 day warranty against manufacture defects. Can't find what your looking for? Contact us and our staff will assist with the parts you need. Minimum online orders of $10.00