Prinsco - 4" x 20' N-12 Standard Perforated Dual Wall with Bell and Spigot

4" x 20' N-12® dual-wall corrugated pipe offers high-performance stormwater drainage in a lightweight, durable form. Designed for commercial, municipal, and large-scale residential applications, N-12 pipe combines a smooth interior wall for superior hydraulics with a rugged exterior corrugation for added strength.

Construction & Durability:

• Made from high-density polyethylene (HDPE), including virgin and recycled resin compounds
• UV-resistant and resistant to corrosion and chemical attack
• Maintains performance in pH environments from 1.5 to 14
• Proven durability in deep fill installations over 100’

Performance & Functionality:

• Dual-wall design with smooth interior for maximum hydraulic efficiency (Manning's n = 0.012)
• Supports H-25 or HL-93 live loads with proper cover (min. 12")
• Watertight joints exceed ASTM D3212 and F2487 field test requirements
• Soil-tight and watertight joint options with integral bell-and-spigot gasketed design

Ease of Installation & Use:

• Lightweight—up to 30x lighter than concrete—eases transport and installation
• 20' lengths reduce number of joints and speed up installation
• No beveling required for cuts; easy to fit with available molded fittings
• Faster installation reduces labor hours and equipment needs

Technical Specifications:

• Pipe Diameter: 4"
• Pipe Length: 20'
• Material: High-density polyethylene (HDPE)
• Interior Wall: Smooth for high flow capacity
• Exterior Wall: Corrugated for structural strength
• Pressure Rating: Gravity flow, not pressure rated
• Joint Options: Soil-tight and watertight integral bell-and-spigot
• Meets ASTM Standards: F2648, F2306, D3212, F2487, F477, D2321
• Recommended Manning’s “n” value: 0.012
• UV Resistant: Yes

Installation & Application:

• Recommended Uses: Storm sewers, culverts, landfills, cross drains, and subsurface drainage
• Installation Method: Buried in-ground with compacted backfill (Class I–III soils recommended)
• Soil & Climate Suitability: Performs under extreme fill and temperature conditions

Compatibility & Optional Accessories:

• Compatible with ADS fittings and Nyloplast inline drains
• Works with injection-molded or fabricated HDPE couplers
• Can be connected to PVC, concrete, and other materials via Series 35® sanitary fittings