MIFAB® Series XS heavy duty finished floor / shower drain strainers. Available in 5″, 6″, 8″ or 10″ square sizes and in either heavy duty nickel bronze (5,000 - 7,499 lbs.) or in heavy duty Type 304 stainless steel (5,000 - 7,499 lbs.). Special duty load rated (over 10,000 lbs.) ductile iron strainers are also available in the 5″ or 8″ sizes). Furnished standard with vandal resistant allen key screws.