Material:
Ring/strainer: Nickel-bronze,Ductile iron
Head adapter/Coring sleeve/Clamping collar: Ductile iron
Coring plug: High-impact polymer
Base adapter: cast iron
Strainer Load Rating
Large Top: Std. Top
Nickel-Bronze (heel-resistant): 750 lbs. (light duty) 1,650 lbs. (light duty)
Stainless Steel (heel-resistant): 1,000 lbs. (light duty) 2,000 lbs. (light duty)
Ductile Iron: 6,000 lbs. (heavy duty) N/A
Adjustable flashing drain shall have an invertible flashing collar with openings to allow secondary drainage and a cast iron base adapter. The strainer shall meet applicable load requirements for the intended use.