What it delivers
The TT FLEX TTET21G Expansion Tank is a water heater part.
Match the part to the exact heater model and its manual before ordering.
Tank volume, per the listing: 2.1 gal.
Expansion tanks are sized to the system's volume and pressure; relief valves to the heater's rating. Match the part to the heater's manual and local code.
Other listed details: features: Rustproof; connections: 3/4" mnpt; material: Plastic; model: TTET21G; warranty: 2-Year Warranty.
The listing gives a weight of 5.3 lb.
Warranty, per the listing: 2-Year Warranty.
Right unit for this house?
Install it when
- Installing or servicing a tankless heater
- Matching a part named in the manual
Look at another unit when
- Heaters it doesn't name
Strengths and trade-offs
Strengths
- Water heater part
Trade-offs
- Model-specific: check the manual
Install limits
- Figures are the maker's or seller's own. Flow at a rise is our estimate from the input; gas, venting and electrical work needs a licensed professional.
Rated performance
Every figure below comes from the source shown in brackets. Where the maker doesn't state something, we say so instead of estimating.
| Model number | TTET21G | Retailer |
|---|---|---|
| Tank | 2.1 gal | Retailer |
| Features (seller) | Rustproof | Retailer |
| Material | Plastic | Retailer |
| Product weight | 5.3 lb | Retailer |
| Warranty | 2-Year Warranty | Retailer |
| Connections | 3/4" mnpt | Retailer |
Rival units at this flow
More venting and install parts rated for similar demand
Final verdict
A sensible water heater part for installing or servicing a tankless heater.
Buy this unit
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