#9 Round Base Silicone Pipe Flashing - #9 ROUND BASE RED SILICONE PIPE FLASHING. 25-1/4 Inch DIAMETER BASE. OPEN TOP. FITS 10 Inch to 18-3/4 Inch O.D. PIPES. PRICE/EACH (5 boots/case, order full cases for discounts).
#9 Round Base Silicone Pipe Flashing
$117.00 SALE $89.95
(Savings: $27.05)
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#9 Round Base Red Silicone Pipe Flashing. 25-1/4" Diameter Base. Open Top. Fits 10" To 18-3/4" O.D. Pipes. Price/Each Boot (5 boots/case, order full cases for discounts).

Ordering Notes:

  • Shipping leadtime: 1-2 business days.


Flexible Base Design: Sealing tightly with sealant and almost any type of fastener, the flexible base is virtually compatible with any roofing material -- metal, plastic, asphalt, tile, rubber membrane, and more.

Resilient Design - Performance is unaffected by: Ice/snow, Hail stones, Vibration, Expansion/Contraction.

Environment Control: Provides a permanent seal that controls gaseous or liquid environments to eliminate leakage and odor contamination.

Corrosion-Resistant Base: Made of heavy-duty aluminum alloy for flexibility and corrosion resistance.

Roof Pitch-Adaptability: The stepped-cone design makes flashing easily adaptable to most roof pitches


  • Hot Pipes, Heater Pipes, Stove Pipes, Gas Vent Pipes
  • Chemical Pipes, Corrosive environments
  • Extreme Service Environments.
  • Plumbing, heating/air conditioning vents and equipment
  • Electrical service entrances
  • Solar collection pipes
  • Grain augers
  • TV aerials
  • Masts, vents or pipes through decks or bulkheads
  • Lighting conductors
  • Pest control


Manufacture provides 20 year limited warranty.


SELECT and TRIM... Choose appropriate size opening at least 20% smaller than pipe diameter. If necessary trim opening to 20% smaller than pipe diameter.

SLIDE... Slide down over pipe. (A non-petroleum base lubricant will ease installation.). Use RETRO-FIT Flashing where pipe is not accessible.

FORM... Press down, bending it to conform to roof profile or roof irregularities. A blunt tool will help press flashing into tight roof angles.

SEAL... Apply a bead of sealant between Master Flash base and roof and at top edge to pipe.

FASTEN... Use exterior grade fasteners with sealing washers to complete sealing. For UPC installation, fastener spacing may not exceed 1-1/2" (38mm).


Email us at sales@bestmaterials.com or
Call us at 1-800-474-7570 or 602-272-8128
You'll get a prompt reply!

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