The McAlpine DC2BL-OS 4"/110mm Drain Connector with Offset Sealing Ring is designed to connect plastic waste pipes to BS EN 1451-1:2000 and BS EN 1329-1:2000. The offset sealing ring helps to create a secure and watertight connection between the drain connector and the waste pipe. The connector has a 4"/110mm diameter, which is a standard size for waste pipes in the UK. It is important to ensure that the waste pipe and drain connector are both compatible with the same standards before attempting to make the connection. Additionally, it is important to follow the manufacturer's instructions for installation to ensure a safe and secure connection. ・ Available in 1¼, 1½", and 2" sizes ・ Finned seal spigot for internal connection to 4"/110mm cast iron, plastic or clay ・ Ideal for low level connections ・ Sealing ring to fit BS EN 1451-1:2017 and BS EN 1329-1:2020 plastic waste pipe ・ Manufactured in Polypropylene