Supply of Set Of Purge-O-Mat Automatic Float Air Vent Valve For Roof Water Tank 1 Purg- O-Mat Automatic Float Air Vent Valve With Shut-Off Valve Having Thread Bsp 3/8 To Rcf Drg. No. Lw 63150, Item No.-4, Alt-E, Qty/Set : 01 No. 2 Vaccum Valve G-1/2 Inch To Rcf Drg. No. Lw 63 150, Item - 3, Alt. -E, Qty/Set-2 Nos. Warranty Period: 30 Months After The Date Of Delivery Quantity Tolerance +/-: 5 %Age, Item Category : Normal, Total Po Value Variation Permitted: Max 8 Lacs