The 90-degree Spigot outlet is manufactured in LM6 Aluminium Silicon casting alloy to BS 1490:1970 for most roof finishes as standard or in leaded gunmetal to BS 1400:1985 for use with lead or copper-clad roofs or for connection to copper pipework. Caroflow 90-degree Spigot outlets are suitable for connection to, PVC (with heatshrink adaptor or flexible coupling), Aluminium, Cast Iron and Copper (Gunmetal only).