DN20 Tectite Wall Plate Elbow and Fittings, for use with the SPED20 and SPWP20 Standpipe Assemblies. The Fittings included with the Elbow are Socket Button Head Set Screws and 3 Spacers. The Wall Plate Elbow is bolted to the Standpipes robust galvanised steel housing with insulated standoffs and connects the Double Check Valve to the DN20 Bib Tap.