Connection Size B3 inchConnection Size A1 1/4 inchERP (Energy Efficiency)NPipe Connection TypeCompressionPipe Connector TypeCouplerConnection MaterialPlasticTypeFittings - Couplers & ConnectorsSuitable forExtending the height of a trapMaterialPlasticDiameter1 1/4 inch x 3 inchColourWhiteSupplier Part NumberS12A-3Range DescriptionPlastic & Chrome FittingsBrand NameMcalpine