17" x 17" Interlaken Catch Basin Grate (Heel Proof)

A classically-inspired circle and diamond pattern gives our signature Interlaken design a timeless appeal, along with the ability to complement a wide variety of architectural applications. Dimensions:  16.81" x 16.81" x 1" Drain Manufacturer: NDS® Fits:  NDS® 1800 Series Material: Cast Ductile Iron Finish Options: Raw / Baked On Oil Finish Weight lb(s): 28.92 Free Drain Area: 9.33% Gallons Per Minute (GPM): 34.55 Recycled Content: 80% ADA Compliant: Yes  What is Heel-Proof?A “Heel-Proof” design requires a smaller maximum opening of only 1/4″. While that offers a more suitable surface for walking on in high-heeled shoes, “Heel-Proof” can quickly become “Drain-Proof”.