Portals Plus 23025, Alumi-Flash Extra Wide Base w/212 Black Cap

The Portals Plus 23025 Alumi-Flash Extra Wide Base with C-212 Black Cap is designed for flashing multiple roof penetrations through a single base. The unit features a .060″ spun aluminum base, 4″ high, with an 18″ base diameter and an 8″ collared opening featuring two roll-formed sealing beads. The molded EPDM C-212 cap seats onto the collar beads and uses the stainless-steel Snaplock clamp to establish a mechanical, weather-tight pressure seal.

Key features:

• .060″ spun aluminum base, 4″ high, 18″ base diameter featuring an 8″ collared opening with two sealing beads.
• C-212 EPDM cap designed for multiple pipe applications matched to the base.
• Stainless-steel Snaplock clamp provides a secure mechanical seal between cap and base.
• Optimized for retrofit or new roof flashing where multiple penetrations are grouped together.

• SKU: 23025 (POR-23025)
• Product type: Extra Wide Alumi-Flash Base with C-212 Black Cap
• Base construction: .060″ spun aluminum, 4″ height, 18″ base diameter, 8″ collared opening, two roll-formed sealing beads
• Cap: C-212 molded EPDM cap with stainless-steel Snaplock clamp
• Application: Flashing system intended for multiple roof penetrations using one base unit

• Install and roof-in the spun aluminum base per Portals Plus instructions and roofing membrane manufacturer’s guidelines.
• Insert the grouped roof penetrations through the base collar opening.
• Place the C-212 EPDM cap so its internal grooves engage the two sealing beads on the collar.
• Tighten the stainless-steel Snaplock clamp evenly to complete the mechanical seal.
• Inspect the assembly to ensure proper bead engagement and secure clamp fit.

Q: What base size and material are used in this model?
A: The base is made of .060″ spun aluminum, 4″ high, with an 18″ base diameter and an 8″ collared opening with two sealing beads.

Q: What cap model is used for this extra wide unit, and what is its sealing method?
A: The cap model is C-212 EPDM, which pairs with the base beads and uses the included Snaplock clamp to form a mechanical seal.

Q: What is the intended application for this flashing system?
A: It is designed for flashings where multiple roof penetrations need to pass through a single base unit.

Q: Are the clamp and cap included with the base?
A: Yes — the cap model C-212 comes with the stainless-steel Snaplock clamp for sealing the cap to the base.