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Round blue epoxy-coated cast-iron roof drain with plastic dome, 14-1/8 inch diameter

Watts

Watts RD-103 14-1/8 in Cast-iron Roof Drain

SKU CH-X32X-E9VA3 MPN RD-103

Cast-iron roof drain with epoxy-coated basin, self-locking plastic dome, and integral flashing clamp for 3-inch no-hub connection

  • Product typeDrain Components
  • Product colorBlue
  • Epoxy-coated cast iron resists corrosion for long service life
  • 14-1/8 inch diameter handles high-volume roof runoff
  • Self-locking plastic dome stays secure without tools
  • Bottom outlet with no-hub connection simplifies pipe installation
  • Includes flashing clamp with integral stop for watertight seal

Roof drain with cast-iron body and plastic dome

This roof drain features a cast-iron body finished in epoxy coating for corrosion resistance. A self-locking plastic dome sits above the flange while the outlet is located at the bottom. The unit includes a flashing clamp with an integral stop for secure roof membrane attachment.

Suited for flat-roof drainage on commercial

Installers needing a no-hub connection on a three-inch pipe will find this drain compatible. Projects that require a metal dome, a side-outlet configuration or a different pipe diameter should select another model.

14-1/8 inch overall diameter fits standard roof

The circular basin measures 14-1/8 inches across, matching common roof-penetration sizes. This single dimension determines whether the drain aligns with the prepared hole in the roof deck.

How it compares

Measured against everything we stock in Drain Stoppers, Strainers & Traps, at today’s prices. Recalculated every night.

Price $279.99
Pricier than about 89% of the 4,240 comparable items (median $31.99).

Specifications

Product
Brand nameWatts
Model nameRD-103
Product typeDrain Components
Product colorBlue

Questions about this item

What size roof opening fits the 14-1/8 in overall diameter?

The round cast-iron body measures 14-1/8 in across, so the roof penetration must be at least that wide to seat the flange.

How do you secure the self-locking plastic dome during installation?

Press the dome into the drain body until the integral tabs click; the self-locking design holds it without tools.

When should the epoxy-coated basin and flashing clamp be inspected?

Check the epoxy finish and clamp seal after heavy storms or annually to catch coating damage or clamp loosening early.

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