Marathon Cast Iron Dome for 10-in. PVC Roof Drain

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Product Overview

Marathon BS-1065 Cast Iron Dome 9-3/4" O.D.


A versatile, quick and easy replacement cast iron dome for the Marathon 10-in. PVC Roof Drain. It’s no longer hard to find a replacement dome that fits properly on old roof drain openings.

Outside Diameter: 9-3/4"

Height: 4-1/2"


  • Broad 10-in. diameter from maximum drainage area.
  • Low profile 5-in. overall height designed for stability and strength.
  • Multiple openings matched to the base ring “V” grooves to maximize drainage.
  • Twist-n-Lock attachment, plus 2 bolts to secure base ring.
  • Vandal resistant.




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