supply of set of purg-o-mat automatic float air.set of purg-o-mat automatic float air.,set of purg-o-mat automatic float air vent valve for overhead roof water tank and vaccum valve consisting of following items. (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 g q ty-01 nos. (2) vaccum valve g-1/2 to rcf drg. no. lw 63150, item no. 3, alt g qty-02 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 ] ] amm (cd) bct, wr maharashtra 600.00 set