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WATTS RD-103 Cast Iron Primary Roof Drain, 3 in No Hub, Plastic Dome - Primary Roof Drains
WATTSPrimary Roof Drains

WATTS RD-103 Cast Iron Primary Roof Drain, 3 in No Hub, Plastic Dome

The WATTS RD-103 is a cast-iron primary roof drain with a 14 1/8 in overall diameter and 12 1/2 in overall height. It features a 3 in nominal pipe size, a no-hub connection type, and includes a self-locking plastic…

SKU 3G-OTH-739948

Also listed as: RD103 · RD 103

Brand
WATTS
Item
RD-103 Cast Iron Primary Roof Drain, 3 in No Hub, Plastic Dome
Part Number
RD-103
Category
Primary Roof Drains
Available to Order
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Technical specs
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Local availability & support — the Philippines

Delivery
5–8 business days door-to-door; Bureau of Customs clearance typically 2–4 business days.
Payment
Invoicing in PHP or USD. Bank transfer and corporate PO accepted.
Ships to
Manila, Quezon City, Cebu, Davao, Batangas

Technical Specifications

WATTS
Manufacturer Part Number
RD-103
Type
Cast Iron
Includes
Self Locking Plastic Dome
Overall Ht
12 1/2 in
Dome Material
Plastic
Connection Type
No Hub
Nominal Pipe Size
3 in

Technical Documents

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WATTS Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The WATTS RD-103 is a cast-iron primary roof drain with a 14 1/8 in overall diameter and 12 1/2 in overall height. It features a 3 in nominal pipe size, a no-hub connection type, and includes a self-locking plastic dome. This product is supplied by 3G Electric, a global industrial solutions provider that interprets customer demand and delivers genuine equipment across 14 departments, with specialist depth in combustion, pumps, and controls.

Supplied to the Philippines — compatible with 60 Hz installations. DHL Express delivery to Manila, Quezon City, Cebu, customs and duties handled door-to-door.

Frequently Asked Questions

What is the WATTS RD-103 roof drain used for?

The WATTS RD-103 is a primary roof drain designed to remove rainwater from flat or low-slope commercial roofs. Its cast-iron body and no-hub connection provide durability and easy installation in plumbing systems. 3G Electric supplies this genuine WATTS drain for industrial and commercial building applications worldwide.

What are the specifications of the WATTS RD-103 roof drain?

The WATTS RD-103 has a 14 1/8 in overall diameter, 12 1/2 in overall height, and a 3 in nominal pipe size. It features a cast-iron body, no-hub connection type, and includes a self-locking plastic dome. The dome material is plastic. 3G Electric supplies this WATTS drain globally.

Where to buy the WATTS RD-103 roof drain worldwide?

3G Electric supplies the WATTS RD-103 roof drain to customers worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your site. Contact us to order this genuine WATTS drain for your commercial roofing project.

How to install the WATTS RD-103 roof drain?

Install the WATTS RD-103 by connecting the no-hub outlet to the drain pipe using a standard no-hub coupling. Secure the cast-iron body into the roof deck, ensuring proper flashing for waterproofing. Attach the self-locking plastic dome after installation. Always follow local plumbing codes and manufacturer guidelines.

Used in

Common applications for WATTS
Commercial plumbing – Watts standard capacity water pressure regulators (3/8 LF 26AB) for stabilizing incoming water pressure
Industrial steam systems – Watts 152A series steam pressure regulators for pressure reduction in process and heating lines
Cross-connection control – Watts 757 double check backflow preventers for commercial and industrial water supply protection
Boiler safety – Watts ASME Section XIII temperature and pressure relief valves for overpressure protection in heating systems
Hydronic heating – Watts CP16 pilot-operated pressure regulators for maintaining consistent pressure in steam or water loops
Water hammer mitigation – Watts LF15M2-A water hammer arrestors for absorbing surges in quick-closing valve applications
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WATTS Products

3G Electric supplies WATTS primary roof drains. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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