Check Valve (Or Non Return Valve), Size 15 Mm, Swing Type, Spring Loaded Inside Scre W, Class - 1 Specification No: - Is 778:1984.(Reaffirmed 2020, Incorporating 04 Amendments) [ Warra Nty Period: 30 Months After The Date Of Delivery ] [Quantity Tolerance (+/-): 5 %Age , Item Category : Normal , Total Po Value Variation Permitt Ed: Max 8 Lacs ] ]