Advanced Drainage Systems Inc.
Advanced Drainage Systems Inc. 321AA Tee Fitting
Polyethylene plastic tee fitting resists acids, alkalis and freezing for drainage systems
- Strong lightweight polyethylene resists crushing
- Corrosion-resistant material withstands acids and alkalis
- Freeze-resistant construction handles cold temperatures
- Corrugated design suits drainage and waste systems
- 3 inch size fits standard corrugated pipe connections
3-inch Tee Fitting for Drainage Systems
This 3-inch tee fitting connects three sections of corrugated pipe in drainage and waste-management layouts. It is made from polyethylene plastic that resists acids, alkalis and freezing temperatures without breaking or crushing. The lightweight material makes handling and positioning straightforward on site. Builders and DIY users working on residential or light-commercial drainage projects will find it suited to standard 3-inch corrugated pipe runs.
Integrates with Corrugated Pipe Networks
The fitting joins directly to 3-inch corrugated polyethylene pipe, completing a branch or junction without additional adapters. Its corrosion-resistant body eliminates the need for protective coatings or metal hardware that can degrade in wet, chemical-prone ground. By using a single moulded piece, it reduces the number of separate components a crew must carry and assemble. The design frees installers from threading or gluing steps required by rigid alternatives.
Maintains Shape Under Ground Pressure &&
The polyethylene construction absorbs soil movement and surface loads without cracking, preserving flow paths through seasonal freeze-thaw cycles. Chemical resistance prevents wall thinning when exposed to alkaline or acidic runoff over extended periods. Because the material does not become brittle in cold conditions, the fitting retains its structural integrity during winter installations and long-term burial. Sustained performance relies on the inherent toughness of the plastic rather than on added reinforcement.
Highlights
- Strong lightweight polyethylene resists crushing
- Corrosion-resistant material withstands acids and alkalis
- Freeze-resistant construction handles cold temperatures
- Corrugated design suits drainage and waste systems
- 3 inch size fits standard corrugated pipe connections
Specifications
| Brand | Advanced Drainage Sy. |
|---|
Questions about this item
How well does the 321AA polyethylene tee handle continuous underground pressure and freeze-thaw cycles?
The corrugated polyethylene construction resists crushing, acids, alkalis and freezing temperatures, making it suitable for sustained buried drainage loads.
Does the 321AA tee generate any noise, heat or power draw when installed in a gravity drainage system?
As a passive polyethylene fitting it produces no noise, heat or electrical consumption during normal gravity-flow operation.
Which pipe size and material must I already have on site to connect the 321AA tee?
The fitting is sized for 3-inch corrugated polyethylene pipe, so matching 3-inch corrugated PE pipe and compatible couplers are required.
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