TWINWALL DUCTING 110mm COUPLING (WITH LUGS) This 110mm coupling with lugs is designed for secure and reliable joining of Twinwall ducts. The lugs offer enhanced grip and fit. • For use with 110mm Twinwall ducting • Lugged design for added security • Heavy-duty polyethylene Availability: Collection and delivery available. Need Help? Emailsales@pips.uk.comor call01772 555224.