Apply to be a TradeMaster!
4" x 12" Z-DENS UV-Grey Polypropylene Pipe
Hover image to zoom

4" x 12" Z-DENS UV-Grey Polypropylene Pipe

4" x 12" Z-DENS UV-Grey Polypropylene Pipe
Hover image to zoom
$21.53 each
In Stock
In Stock
Get 1 Fri, Jun 2
More Available
Fast Track Logo
Order by today, receive Friday
Free Shipping On orders over $99
Easy Returns No restocking fee for 90 days

Product Highlights

Vent Type icon
Pipe Length
Diameter (Inches) icon
4" Diameter
Material icon
Length (Inches) icon
12" Length
Color icon
UV Grey


Note: Image may not represent actual product.

4" x 12" Z-DENS Polypropylene Pipe

Z-DENS is a ULC-S636 listed polypropylene gas venting system suitable for venting positive or negative pressure residential and commercial gas and oil fired Category II and IV condensing heating appliances with a maximum continuous flue gas temperature of 230°F (110°C ).

  • Gasketed connections
  • NO sealant and cure time for quick system start up
  • NO toxic or explosive primers and cements
  • NO chlorides to leach out
  • Recyclable - environmentally friendly
  • Manufactured from fire retardant polypropylene
  • Field cut or adjustable length saving time and money
  • Pressure rating exceeds industry standards
  • Singlewall manufactured in 2” to 8” diameters
  • Flexible manufactured in 2”, 3” and 4” diameters
  • Concentric manufactured in 2”/4”, 3”/5” and 4”/6”diameters.

Double Fail Safe™ Connections

Z-DENS components are supplied with self sealing gasket connections that installs in a fraction of the time as compared to field primed/glued and sealed systems. The special design of the gaskets, along with precision engineered close tolerance construction of components, ensures a reliable seal and a tight fit.

High Pressure

Z-DENS components are supplied with factory installed, fail safe seals tested to 20”W.C. which exceeds industry standards.

Intertek Tested and Listed

Z-DENS Polypropylene vent is tested and listed by Intertek to ULC-S636 Type BH Venting System to Class IIC with a maximum flue gas temperature of 230°F (110°C) and certified to zero clearance to combustible construction.


Vent Type:

Pipe Length

Diameter (Inches):




Length (Inches):



UV Grey

Help Face


Speak with a real person who will go out of the way to help!
Call or text 888-757-4774

Free Shipping
On orders over $99
We offer flexible shipping and scheduling options, up-to-date delivery estimates, and free ground shipping on any order over $99 to make sure your order gets to you on-time, for less.
Shipping Policy
Easy Returns
Returning items is as simple as 1-2-3
Ordered the wrong product? Item damaged in transit? Our 3-step process makes returning products easy – even up to a year after purchase – with no restocking fees on returns made within 90 days.
Return Policy