Based on this product's specifications, here are some alternatives and similar models
TDM Brass 121E Lock-Nut 1¼ inch
Summary description:
The TDM Brass 121E lock-nut is a high-quality plumbing component designed for secure pipe connections. Featuring a 1¼ inch thread size, this brass fitting ensures reliable fastening in various hydraulic and heating systems. Its durable construction provides excellent resistance to corrosion and mechanical stress, making it an essential part for professional plumbing installations and maintenance.