4 inch ADS Corrugated 90 Degree Snap Lock Elbow

4" ADS Corrugated 90° Snap-Lok Elbow – Engineered for Underground Drainage Applications

The 4" Corrugated Snap-Lok Elbow provides a 90-degree directional transition in corrugated polyethylene drainage systems. Designed for use with 4-inch single-wall corrugated drain pipe, this elbow is an essential component for diverting flow in subsurface water management installations.

Manufactured from high-density polyethylene (HDPE), the elbow features a Snap-Lok connection that allows for quick, secure engagement with compatible pipe without the need for adhesives or mechanical fasteners. This connection method helps maintain system integrity under load and soil movement, particularly in non-pressurized applications such as stormwater, agricultural drainage, and lawn or landscape runoff control.

Key Features

• ✅ 90-Degree Bend – Provides a consistent radius for directional changes in drain tile layout.
• ✅ Snap-Lok Connection – Enables fast, toolless installation with tight interlocking engagement to minimize joint separation and infiltration.
• ✅ High-Density Polyethylene (HDPE) – Delivers excellent durability, chemical resistance, and impact tolerance in buried environments.
• ✅ Corrugated Profile – Matches ADS single-wall pipe geometry to ensure continuity in hydraulic performance and soil interaction.

Specifications

• Material: HDPE (High-Density Polyethylene)
• Nominal Size: 4 inches
• Connection Method: Snap-Lok for single-wall corrugated pipe
• Bend Angle: 90 degrees
• Standard Compliance: Typically meets ASTM F405 and AASHTO M252 Type C (verify per job spec)

Installation Guidance

This fitting is intended for non-pressurized gravity flow systems. Ensure pipe ends are clean and aligned before insertion. Push pipe ends firmly into the Snap-Lok bell until fully seated. For improved watertightness in critical applications, gasketed or dual-wall fittings may be used as specified by the design engineer or code requirements.

Common Applications

Used extensively in residential, commercial, and light industrial drainage networks. Ideal for subsurface stormwater systems, perimeter drains, septic field laterals, and retaining wall backdrain assemblies where directional redirection is required.

Field Note

Single-wall corrugated fittings offer fast assembly and high flow capacity but should be installed with proper backfill compaction and slope to maintain system longevity and function.

The 4" ADS Corrugated 90° Snap-Lok Elbow provides efficient, tool-free alignment of single-wall HDPE pipe in field drainage systems. Designed to support field performance in a variety of soil and environmental conditions, it’s a practical and dependable solution for managing subsurface water redirection in modern site development.