304 Stainless Steel Lock Nut 1/4" 3/8" 1/2" 3/4" 1 1-1/4" 1-1/2" 2" BSP Hexagon Locking Cap Of Water Tank Joint Pipe FittingsHome Improvement > Plumbing0,39 $ (≈ 0,35 €)Auf LagerSold by AliExpress WWZum Shop