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The ADVANCED DRAINAGE SYSTEMS 0421AA is a 4-inch polyethylene snap drain tee designed for use in corrugated drainage pipe systems. This fitting connects branch lines to main drain runs without the need for solvent cement or specialty tools, using a snap-fit design that speeds up installation in the field. It is sized at 4 inches and weighs approximately 2.91 pounds per unit. Drainage contractors, site crews, and plumbing professionals install this fitting in subsurface and surface drainage applications where a reliable, tool-free tee connection is required.
This tee is used in residential and light commercial stormwater management, foundation drainage, and subsurface water conveyance systems. It is a standard component in corrugated polyethylene drain pipe networks, providing a branch outlet from the main drainage line. The snap-fit connection method makes it suitable for installations where speed and ease of assembly are priorities, including trench drain laterals, yard drainage, and perimeter foundation systems.
Designed as an OEM-style replacement and standard fitting for 4-inch corrugated polyethylene snap-together drainage pipe systems used in residential and commercial subsurface drainage installations.
Installation is performed by drainage contractors or plumbers working on subsurface water management systems. Before connecting, ensure the pipe ends are clean and free of debris that could prevent a full snap engagement. No open-flame tools or solvents are required for this fitting type. Follow local plumbing and site drainage codes for depth, bedding material, and slope requirements.
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