1 pcs of G3/4" DN20(BSP) Brass Gate Valve for Pipe Plumbing, Sluice Valve Description: ... 1 pcs of brass gate valve, G3/4”, DN20, brass. (SIZE: we have DN15, DN20, DN25, you can choose which one you ... according to ISO 228 standard 1 pcs of G3/4" DN20(BSP) Brass Gate Valve for Pipe Plumbing, Sluice Valve