A split nut helps secure and tighten a compatible union connection, and this Magic Plastics version is a 1.5 inch model for 6214 pump union applications with a small flange using the 0121109015 reference. Union nuts are useful because they help create a serviceable plumbing connection that can be disassembled more easily than permanent joints.This part has practical value because the model-specific pump union and flange details help preserve intended compatibility rather than relying on a generic substitute. A properly selected Magic Plastics split nut contributes to more dependable union assembly and more accurate plumbing service.This type of part is especially useful when the original nut is cracked, stripped, missing, or no longer tightening correctly. That helps restore the serviceable union connection without replacing the broader fitting set.Installed in the proper application, this split nut helps support dependable union retention and stronger long-term serviceability. 1.5 inch split nut from Magic Plastics for compatible 6214 pump union applications Small flange format helps preserve original fit Useful when replacing a cracked or stripped original nut Supports dependable union tightening and service access Improves replacement accuracy and plumbing reliability