The McAlpine DC3BL-OS is a drain connector that is designed to connect a 4"/110mm plastic waste pipe to BS EN 1451-1:2000 and BS EN 1329-1:2000. It features an offset sealing ring which provides a secure and watertight connection. The DC3BL-OS is made from high-quality PVC material and is suitable for use in both domestic and commercial plumbing installations. It is compatible with a range of plastic waste pipe materials, including PVC, ABS, and polypropylene. The offset sealing ring allows for easy installation, even in tight spaces or where the pipe may not be perfectly aligned. It also provides an additional layer of protection against leaks and ensures that the connection remains secure and watertight over time. Overall, the McAlpine DC3BL-OS is a reliable and durable drain connector that provides a secure and watertight connection between a 4"/110mm plastic waste pipe and BS EN 1451-1:2000 and BS EN 1329-1:2000. Its offset sealing ring makes it a popular choice for many plumbing installations, especially those where space is limited or the pipe alignment is not perfect. ・ 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 1451:2000 and BS EN 1329-1-2000 plastic waste pipe ・ Manufactured in Polypropylene