Tenders for Supply of Fresh Air Filter 270Mm X 225Mm X 50Mm For Vande Bharat Express, Filter Media As Per Fire Safety Standard En45545hl2 1-3 As Per Rdso Spec. Rdso/Pe/Spec/Ac/0055 Rev-2, Make- Usha, Amit Or Its Equi Valents. Warranty Period: 30 Months After The Date Of Delivery