Portals Plus 62641, 62651, 62671 - Cast Iron Plus Pack - Alum Dome

The Portals Plus Cast Iron Plus Pack Roof Drain with Aluminum Dome is a comprehensive kit built for both new installations and retrofit (re-roof) projects. Each unit features a cast iron drain body for structural durability, a cast-aluminum dome strainer for high resistance to wear and weather, a cast-aluminum under-deck clamp, and a flexible EPDM expansion coupling with stainless steel hardware. The kit is designed for single-ply or built-up roof drainage systems.

Key features:

• Cast iron drain body for heavy-duty strength and longevity.
• Cast-aluminum dome strainer and clamping ring offer superior durability over plastic alternatives.
• Flexible EPDM expansion coupling and stainless-steel hardware included for reliable installation.
• Suitable for both new construction and retrofit/reroofing of single-ply or built-up roofs.

• SKUs: 62641 (fits 3″ I.D.), 62651 (fits 4″ I.D.), 62671 (fits 6″ I.D.) 
• Product type: Cast Iron Plus Pack Roof Drain w/ Aluminum Dome
• Body material: Cast iron drain body. 
• Dome strainer material: Cast-aluminum aluminum dome. 
• Application: New or retrofit roof drain kit for single-ply & built-up systems.

Q: What is the difference between SKUs 62641, 62651 and 62671?
A: These models correspond to drain sizes: 62641 fits 3″ internal diameter existing drain pipe, 62651 fits 4″, and 62671 fits 6″.

Q: Is this kit only for new installations or can it be used for retrofits?
A: The kit is designed for both new construction and retrofit (re-roof) installations in single-ply and built-up roofing systems.

Q: What advantages does the aluminum dome provide?
A: The cast-aluminum dome strainer offers enhanced durability, better impact and corrosion resistance compared to plastic domes, making it ideal for heavy-duty roof drainage applications.

Q: Does the kit include all necessary hardware for installation?
A: Yes — the Plus Pack includes the drain body with under-deck clamp, dome strainer, clamping ring, EPDM expansion coupling, and stainless-steel clamps and hardware.