supply of rubber kit for c-2.relay valve consist of 9 items. , rubber kit for c-2.relay valve consist of 9 items. (1) gasket pipe bracket wabco 850037 : qty-1no.- drg. no.- sk.dp-3047 (2) gasket wabco 527717 : qty-1no. (3) diaphragm wabco 536300 : qty-1no. (4) o ring wabco 532282 : qty-1no. (5) seal valve wabco 557396 : qty-1no. (6) o ring wabco 524614 : qty-1no (7) o ring wabco 532257 : qty-1no. (8) seal wabco 850047 : as per drg no cr/ci/gk - 116 qty-1no . (9) o ring wabco 536239 : qty-1no. & rdso specification no. serial .no.r-48-21 june 2021 [ warranty period: e of delivery ] [quantity tolerance (+/-): 5 %age , item category : normal , total po value variation permitted: max 8 lacs ] ]