The Franklin Machine Products 102-1206 Guardian Drain Lock is an ingeniously designed device tailored to enhance the security and functionality of floor drains with a diameter of 4 inches. With an outer diameter of 4-1/2 inches, this drain lock is engineered to provide a robust fit, ensuring optimal protection and performance. Its dome shape not only contributes to its sturdy construction but also facilitates efficient drainage and debris management. The drain lock features an aluminum dome, a material choice that underscores its durability and resistance to corrosion, making it suitable for various environmental conditions. Additionally, the product includes a plastic collar, offering a lightweight yet reliable solution for secure installation and ease of use. The Franklin Machine Products 102-1206 Guardian Drain Lock is particularly valuable across industrial, commercial, and residential settings where floor drain protection is paramount. By investing in this drain lock, facilities can ensure long-lasting performance and maintenance ease, effectively safeguarding against potential blockages or unauthorized access. This product exemplifies a blend of innovative design and practical application, marking it as a significant asset for industries requiring reliable drainage solutions.