Featuring an anti-vortex design, this product ensures safety and optimal water circulation. Comes with a 11.125-inch diameter cover supported by precise 6.78-inch and 10.5-inch center distances between mounting screws. Compatible with 7.75-inch and 11.5-inch diameter mounting rings. In addition to its safety features, this product is fully VGBA compliant. Crafted from durable ABS plastic, guaranteeing long-lasting performance.