The AllPoints Foodservice Parts & Supplies 1021174 Guardian™ Drain Lock is designed for efficient drainage in commercial settings. This floor drain features a 3-1/2" diameter opening, ensuring optimal water flow. The durable plastic body is complemented by a robust bronze top plate measuring 4-9/16" square, providing both strength and aesthetic appeal. Ideal for maintaining cleanliness and preventing clogs, this drain lock is a reliable accessory for any foodservice environment.