Discount Drainage Supplies

discount drainage supplies

Over 200 years
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*Not available at every branch location. Call your local Discount Drainage Supplies branch for the brands they carry.

High Density Polyethylene Smooth Lined Pipe

6” thru 48” Dual Wall
20’ and 20.50’ Sections
Meets ASTM F405 and ASTM F667
We stock a large selection of fitting for sizes 6” thru 24” and larger fittings are available per request.
We stock end sections for sizes 10”, 12”, 15” and 18”. 


n-12® ASTM F2648 ST (soiltight) IB Pipen-12
  • 4" – 48" (100 to 1219 mm) diameters available
  • 6m (19 ft, 8 in) or 4m (13 ft) lengths available
  • Bell and spigot joint design
  • In-line bell design
  • Exceptional joint strength
  • Excellent abrasion and corrosion resistance
  • Light weight
  • Fast installation times
  • Structural strength that will support H-25 live loads with 12" (300mm) minimum cover (60” pipe requires 2' cover for H-25 loads)


  • Variety of diameters and lengths that will fit in any project
  • Joint only requires lube for fitting – ends are pushed together for easy field installation
  • Unlike pipes from other manufacturers, there are no additional gasket materials, grout or sealing bands to transport and apply
  • Installation cost savings from lower shipping costs, fewer people, and less heavy equipment required
  • The reinforced polyethylene bell minimizes distortion. Chipping and cracking common to concrete pipe bells, is eliminated
  • Hydraulic efficiency from smooth interior
  • Long-term durability of HDPE