Portals Plus 66201 - 2” ReRoof Aluminum Drain Insert w/ Rubber Seal

The Portals Plus 2″ Aluminum Insert Drain w/ Rubber Seal (POR-66201) provides a retrofit solution for existing roof drains during re-roofing projects. The unit includes a spun aluminum flange (15″ or 18″ O.D.) and an extruded aluminum outlet pipe with a continuous weld to the flange. It features a pre-compressed, modified asphalt-impregnated expanding foam or rubber seal that forms a watertight connection with the existing drain body, rated from –40 °F to +185 °F with at least 150 % elongation.

Key features:

• Retrofit insert drain designed to sleeve into an existing roof drain for minimal disruption.
• Spun aluminum flange and extruded aluminum outlet pipe welded through to provide a rigid, durable body.
• Pre-compressed foam or rubber seal provides a reliable, watertight connection with the existing drain under wide temperature swings.
• Easy rooftop installation with stainless steel hardware — no special tools required on site.

• SKU: POR-66201
• Product type: Aluminum Insert Drain w/ Rubber Seal
• Fits: 2″ outlet (insert size)
• Flange: 15″ or 18″ O.D. spun aluminum drain flange 
• Seal: Pre-compressed modified asphalt-impregnated foam or rubber, rated –40 °F to +185 °F, minimum 150% elongation 
• Installation: Retrofit into existing drain—installed entirely on rooftop, stainless steel hardware, no special tools required

*Insert Dome Not included*

Q: What size existing drain pipe does this insert accommodate?
A: It is designed for a 2″ outlet insert – meaning it fits into a 2″ existing drainage opening for retrofit.

Q: How does the seal perform under temperature extremes?
A: The pre-compressed foam/rubber seal is rated for –40 °F to +185 °F and a minimum 150% elongation, ensuring durability across a wide thermal range.

Q: Do I need to remove the existing roof drain to install this insert?
A: No — this is designed for rooftop installation without removing the existing drain body; it installs directly above the existing drain.

Q: What kind of flange and materials are used for this insert?
A: The unit uses a spun aluminum flange (15″ or 18″ O.D.) and extruded aluminum outlet pipe welded to the flange, providing a durable retrofit body.