EVAPORATOR BLOWER FAN ( RUNNER ) L. H. S. & R. H. S, SUTIBALE FOR USE IN SIDWAL MAKE RMPU OF DOUBLE DECKER LHB TYPE AC COACHES, CONFORMING TO IS: 6911: 1992, HAVING AIR DELIVERY ( AIR FLOW ) MORE THAN 2400 CFM. AS PER DEE/ MOD/ DRG NO. RAC/ 19/ 2017R1 FOR CLOCK WISE MOVEMENT & RAC/ 20/ 2017R1 FOR COUNTER CLOCKWISE MOVEMENT, CONFIRMING TO RDSO SPECIFICATION NO. RDSO/ PE/ SPEC/ AC/ 0134- 2009 ( REV- 0 ), ( EQUAL QUANTITY OF EACH L. H. S. & R. H. S ).