This Cast Iron Flanged Wye Pattern Strainer, 3" Watts Model 77F-DI-FDA-125, has 304 stainless steel perforated screens, a cast iron flanged retainer cap and a drain blow off connection furnished with a closure plug. The strainer also features a double coated, heat fused epoxy coating on the interior and exterior for FDA approved sanitary applications. Made for easy installation and use, it will help ensure the best service life possible.