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Art's Sheet Metal Mfg. 4 in. x 8 in. Oval Vertical Regular Base

Regular price $85.07

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Art's Sheet Metal Mfg. 4 in. x 8 in. Oval Vertical Regular Base


This Art's Sheet Metal Mfg. oval vertical regular base fits 4 in. x 8 in. oval vent pipe and is sold per piece, with 6 pieces per box. It is a flashings-category fitting for mounting vertical oval vent pipe. Order one base per pipe run as required by the job.


Key Features:

  • 4 x 8 oval size: Formed for 4 in. x 8 in. oval vent pipe applications.
  • Vertical regular base: Regular-style base for vertical pipe penetrations.
  • Sheet-metal flashing: A fabricated flashing base from Art's Sheet Metal Mfg.
  • Box of 6: Ships 6 pieces per box for crew stocking.
  • Roof flashing fitting: Used in flashing details around vertical pipe penetrations.

Specifications Table:

Specification Details
Brand Art's Sheet Metal Mfg.
Sell unit 1 piece (6 per box)
Product line Oval vertical regular base
Nominal size 4 in. x 8 in. oval
Profile / style Vertical regular base
Pack quantity 6 pieces per box
Weight 2.5833 lb per piece
Intended use Flashing base for vertical oval vent pipe penetrations
Category Flashings

Fit and Compatibility:

Fits 4 in. x 8 in. oval vent pipe in vertical applications. Companion flashing fittings, pipe and sealants are sold separately.


Frequently Asked Questions (FAQ):

Q: What pipe size does this base fit?
A: It is sized for 4 in. x 8 in. oval vent pipe installed vertically.


Q: How many come in a box?
A: Six pieces per box; you can order by the piece.


Q: What is a regular base used for?
A: A regular base is the standard flashing base fitting for a vertical pipe penetration in a roof.


Q: Is this for flat or pitched roofs?
A: It is a flashing base for vertical pipe penetrations; suitability for the specific roof slope depends on the surrounding flashing detail.


Q: Does it include sealant or fasteners?
A: No, the base is sold as the metal fitting only; sealants and fasteners are ordered separately.


Expert Verdict — Reviewed by the SuperArbor Pro Desk

Match the base size exactly to the oval pipe dimension, since oval fittings are not interchangeable with round pipe. Set the base in compatible sealant per the roof system detail and terminate above the finished roof surface. For other pipe sizes, Art's Sheet Metal Mfg. offers matching oval bases in the same line.

Sheet-metal flashing edges can be sharp; wear cut-resistant gloves when handling and installing.


Order the Art's Sheet Metal Mfg. 4 in. x 8 in. oval vertical regular base for your vent-pipe flashing detail.

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Subject to Approval & Availability
All orders are reviewed before fulfillment. You are not charged until your order is approved and ready to ship — and you may cancel at any time before that at no cost.

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