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Round cast iron roof drain collar with yellow Duco coated finish

Jr Smith

Jr Smith 1001C 13-5/8" Cast Iron Roof Drain Collar

SKU CH-1R9Y-HFZ83

A universal cast-iron replacement dome and collar assembly with a 13 5/8 in diameter, Duco-coated finish and screw connection for roof drains

  • Universal replacement for roof drains
  • 13-5/8 inch overall diameter fits standard openings
  • Cast iron construction with Duco coated finish
  • Meets ASME A112.6.4-2003 and CSA B79-2008 standards
  • Screw connection for secure installation

Universal Replacement Assembly

The Jr Smith 1001C is a universal replacement dome and collar assembly designed for roof drain maintenance. It suits contractors and facility managers who need a direct swap component for existing drainage infrastructure.

Cast Iron Construction Standards

The unit is manufactured from cast iron with a Duco coated yellow finish. It meets ASME A 112.6.4-2003 and CSA B79-2008 (R2013) standards for plumbing fixtures. The assembly includes the replacement collar and secures via a screw connection type.

Targeted Upgrade Scope

This collar replaces worn or damaged domes on compatible roof drains where a 13 5/8 in overall diameter matches the existing opening. It is not ligature resistant and does not fit specific pipe, thread or drain sizes, so verification against the installed base is required before purchase.

Highlights

  • Universal replacement for roof drains
  • 13-5/8 inch overall diameter fits standard openings
  • Cast iron construction with Duco coated finish
  • Meets ASME A112.6.4-2003 and CSA B79-2008 standards
  • Screw connection for secure installation

Specifications

BrandJAY R. SMITH MFG. CO

Questions about this item

How do I install the Jr Smith 1001C cast iron roof drain collar and what step is commonly missed?

Align the universal replacement dome and collar assembly over the existing drain opening, then secure it using the screw connection type; the step often missed is confirming the Duco coated finish seats evenly before final tightening.

What maintenance or replacement will the Jr Smith 1001C collar need over time?

Inspect the Duco coated cast iron surface periodically for coating wear or corrosion; replace the collar assembly if the finish deteriorates or the screw connection loosens beyond re-tightening.

What is the first limit that appears on the Jr Smith 1001C collar under sustained rooftop exposure?

The Duco coated finish on the cast iron body is the first limit; prolonged UV, moisture and thermal cycling degrade the coating, leading to surface corrosion that compromises the collar integrity.

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