If you want assistance measuring the centerline radius of an current elbow, it is best to talk to an elbow production professional to ensure you get the best measurements and the best Remedy for your preferences. Permalink one.5d elbow seamlessly suits into my system, offering a trusted and economical Answer https://www.malleableiron-pipefitting.com/industry-knowledge/how-to-find-elbow-center-of-pipe.html