The Franklin Machine Products 102-1205 Guardian Drain Lock is meticulously engineered to fit a 3-inch diameter floor drain with a 3-1/2-inch outer diameter, making it an essential component for a variety of commercial and industrial drainage systems. This product is distinguished by its dome shape, which enhances its ability to safeguard against debris entry, thereby maintaining optimal drainage efficiency. The aluminum dome construction ensures durability and resistance to corrosion, while the accompanying plastic collar provides a secure and stable fit within the drain. Designed for ease of installation, the Guardian Drain Lock offers a practical solution for facilities looking to maintain high standards of hygiene and operational efficiency. Its robust design and materials are particularly beneficial for environments where floor drains are frequently exposed to harsh conditions, such as in restaurants, kitchens, and manufacturing plants. This drain lock stands out for its blend of functionality and resilience, addressing the needs of professionals seeking reliable and low-maintenance drainage options. By integrating the Franklin Machine Products 102-1205 Guardian Drain Lock, businesses can effectively enhance their drainage systems, minimize blockages, and prolong the lifespan of their floor drains.