Tenders for Supply of Dry Type Fresh Air Filter Size 260X230x60 Mm With Stainless Steel Frame Filt Er Media Used Shall Be Synthetic Non Woven Polyester Coated Having Fire Retardan T Property And Suitable For Rmpu Type Ac Coaches Confirming To Rdso Specn. No. Rd So/Pe/Spec/Ac/0055-2003Rev.2 Or Latest And Drg. No. Rdso/Pe/Sk/Ac/0057-2003 Rev.2 Item 3 Of Sheet 1 Of 2 Or Latest Warranty Period: 30 Months After The Date Of Delivery