This rothenberger regulator is for use with the rothenberger roofing set to regulate pressure from 05bar to 40bar manufactured from brass with 38 inlets and outlets its suitable for 05kg 5kg and 11kg gas cylinders an essential part of the roofers kit key features brass up to 4bar suitable for most gas cylinders with a 38 connection technical inlet 38outlet 38working pressure 05bar to 40bar performance 8kgh