BLANCO 3.5-in Cinder (Gray) Plastic Rust Resistant Strainer Basket with Basket Included in the Kitchen Sink Strainers & Strainer Baskets department at Lowes.com
Blanco filter basket for stopper operation (125590), 79 mm Strainer Diameter(18 slots) for 3.5-inch drain : Amazon.co.uk: Home & Kitchen
Sink accessories – practical and good to look at | BLANCO
Tips for a clean sink - cleaning the drain properly | BLANCO
Question about Blanco Sink Waste | Plumbing Zone - Professional Plumbers Forum