Kit Of Must Change Filter For Rmpu Type Ac Coaches Congirming To Rdso Spe Cification No. Rdso/Pe/Spec/Ac/0055-03/(Rev.2) 2014 And Kit Of Filter Consist Of Rdso Drg.N O.Rdso Pe/Spec/Ac/0057-2003 Rev.2 Sheet 1 Of 2. Kit Consist Of(1) Fresh Air Filter Size 260 ( +- 2%) X 230(+- 2%) X 60(+- 2%) Mm-04 Nos.(2) Return Air Filter Size(I) 620(+- 2%) X 460(+- 2% ) X 50(+- 2%) Mm = 02 Nos (Ii) 550(+- 2%) X 500 (+- 2%)X 50(+- 2%) Mm = 02 Nos. [ Warranty Period: 30 Months After The Date Of Delivery ] ] (EXPIRED)