Aztec Washer Company RF101GP - Retrofit Master Flash (7/8'' - 4")

Aztec Washer RF101GP is a split, wraparound retrofit flashing for cases where a standard boot can’t slide over the top of the pipe. Made from UV- and ozone-resistant gray EPDM, size #1 covers smaller conduits and pipes and conforms to common panel profiles and roof pitches. Marked cut lines simplify sizing, snap-on fasteners speed installation, and a collar channel accepts a zip tie to finish the seal.

Key Features:

• Split, wraparound design for true retrofit installs — no disassembly of lines.
• Gray EPDM compound engineered for weathering resistance (UV/ozone).
• Marked sizing rings for quick, accurate on-site trimming.
• Snap-on fasteners included; collar accepts a zip tie.

• Product line: Standard Retrofit Master Flash.
• Part number: RF101GP.
• Size: #1.
• Material/color: EPDM, gray.
• Pipe range: 7/8 in to 4 in (22–101 mm).
• Base size: 8-3/16 in (205 mm).
• Initial top opening: 7/8 in (22 mm).
• Installation method: Wraparound seam; fasten; seal; optional zip tie at collar.
• Temperature guidance (EPDM, general): Continuous to ~212 °F (100 °C); intermittent to ~275 °F (135 °C).
• Typical use: Roof or sidewall penetrations where slide-over boots won’t fit.

Q: What makes RF101GP a retrofit flashing?
A: The split boot wraps around existing pipes or conduit and fastens to seal, so you don’t need to disconnect lines.

Q: How is RF101GP different from RF101BP?
A: Both are EPDM; GP is gray, BP is black. Performance is similar — many installers pick gray for appearance on certain metal roofs.

Q: What pipe sizes does size #1 cover?
A: 7/8 in to 4 in (22–101 mm).

Q: What sealant should I use at the base?
A: Avoid petro-chemical-based sealants. Urethane or silicone caulking is typically recommended.