Does this have a standard 3 3/8" opening? and will the blanco stariners designed to fit the insinkerators work with this?A. The Waste King 9940 does have a standard size opening but how it connects to the strainers is different than insinkerator models. The blance strainer is designed to work with insinkerator. Please see Waste King's line of strainers to assure compatibility with the Waste king disposals. Waste king product # 3158, 3140, 3154 or 3150.