The Tahoe sink features a unique squared design, generous size, and durable construction. Crafted from KOHLER enameled cast iron, this sink resists scratching, burning, and staining for years of beauty and reliable performance. This metal frame model has holes for faucets with 4-inch centers. 4-inch center faucet holes. Overflow drain. Metal frame installation Undercounter and metal frame models are ADA-compliant Drop-in KOHLER enameled cast iron.