Set Of Unions Consists Of Two Types In One Set. Type 1) 1/2 Union Elbowfemale Id 15 Mm X Od 21 Mmconsisting Of Union Elbowfemale 1 No., Union End Female 1 No., Union Nut1 No. And Gasket 1 No. As Per Clwdrg No. 0/3/65/10. 01 No./Set 2) 1/2 Union Female Id 15 Mm X Od 21 Mm Consisting Of Union Bush Female 1 No., Union End Female 1 No., Union Nut 1 No. And Gasket 1 No. As Per Clwdrg No. 0/3/65/8 01 No / Set.