supply of set of purg-o-mat automatic float air vent valve for roof water tank and vaccum valve.set of purg-o-mat automatic float air vent valve for roof water tank and vaccum valve.,set of purg-o-mat automatic float air vent valve for roof water tank an d vaccum valve :-(1) purg-o-mat automatic float air vent valve with shut-off valve h aving thread bsp 3/8 to rcfs drg.no.lw 63150,item no.-4,alt.no.-b, qty/kit-01 no. (2) vacc um valve g- 1/2 to rcfs drg.no.lw 63150,item no.-3,alt.no.-b. qty/kit-2 nos. as per drg.no. r cf drg.no.lw 63150 as per specn. rcf drg.no.lw 63150sample pass certificate required from sse/rm/ kota before bulk supply, nabl certificate & oem certificate required at the time of delivery, urgent required. [ warranty period: 30 months after the date of delivery ] => limited