Supply of Set Of Items For Roof Water Tank 30L Mounting For Lhb Coaches, 1 Vacuum Valve G-1/2 Inch To Rcf Drawing No. Lw63150, Item-3, Alt.-E/Nil, Qty. - 02Nos./Set, 2 Air Vent Valve With Shutoff Valve Having Thread Bsp 3/8 Inch To Rcf Drawing No. Lw63150, Item- 4, Alt.-E/Nil, Qty.-01 No./Set. Note: Sample To Be Approved Before Bulk Supply. Warranty Period: 30 Months After The Date Of Delivery