Supply of Set Of Purg-O-Mat Automatic Float Air Vent Valve For Roof Water Tank And Vaccum Valve :- 1 Purg-O-Mat Automatic Float Air Vent Valve With Shut Off Valve Havin G Thread Bsp 3/8 To Rcfs Drg. No. Lw 63150, Item No. 4, Alt. No.-E, Qty/Kit - 01 No. 2 Vaccum Valve G-1/2 To Rcfs Drg. No. Lw 63150, Item No.-3, Alt.No.-E. Qty/Kit - 2 Nos. As Per Drawing : M/S. Hans H. Voss Tulpenweg Or M/S. Calefi Or M/S. Watts Industries Italy For Item No. 4 Of Rcf Drg. No. Lw63150 Alt-E. Warranty Period: 30 Months After The Date Of Delivery Quantity Tolerance +/-: 5 %Age, Item Category : Normal, Total Po Value Variation Permitt Ed: Max 8 Lacs