PERMALUX KITCHEN SINK WHITE 19" x 33" x 7-1/2" deep double bowls In "Permalux Plus" finish: acrylic sink with two-part polyurethane added to the back for added strength. Higher and deeper gloss than fiberglass with permanent gloss retention. Caulked finish looks like one-piece unit. Durable and stain resistant, will not chip peel or spiderweb. UV protection, Resists scratching and marring. Cleaner/chemical resistant. Four holes. Five year warranty.