Frequently Asked Questions
The part number for a 20mm brass plug for steel conduit is 1220S20.
Part number 1239L20 will suit any of 1239/20 series.
No, they are light duty. Buy the 1240HL25 to obtain a heavy duty lid and gasket , or if gasket is required for retro fit then buy 1240GT
For more information on this product range please visit the Clipsal web site on the link provided