We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
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

  • TypeDrain Components
  • 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.

Highlights

  • 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

Specifications

TypeDrain Components
ColorBlue
BrandWatts
ModelRD-103

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.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.