
Eastman 3/4" Expansion Tank Tee
7.5Very good · out of 10$39.98 Price on Sep 30, 2026 · may have changed- Service kits, valves & parts

Product images: Amazon listings
Written from the listing's specs, not from our own use · How we rate
The Eastman 3/4" Expansion Tank Tee is a no-fuss tankless part, made for keeping an existing tankless in working order. We rate it 7.5/10 from its documented specs.
| Brand | Eastman |
|---|---|
| Category | Service kits, valves & parts |
| ASIN | B0D4ZJC94L |
Full listing title: Eastman 3/4 Inch Brass Swivel Expansion Tank Tee, Fits 2-10 Gallon Tanks, 26090Z
Two tankless parts close to it on our rating, each with a dated price.


The button opens the exact listing (ASIN B0D4ZJC94L), where today's price, stock and seller apply.

Our take
The Eastman 3/4" Expansion Tank Tee is a plain tankless part, and for keeping an existing tankless in working order plain can be the point. No buyer reviews yet, so the Eastman 3/4" Expansion Tank Tee has to win you over on paper. Where it falls short: no word on the exact models it fits. We'd pick it if you want a tankless part for keeping an existing tankless in working order; otherwise, put it next to the JUGGHOME Expansion Tank Brackets first.
Before you order the Eastman 3/4" Expansion Tank Tee, check your model number: it is listed for specific models, and fit is model-specific.
Find the model and part number in your heater's manual and compare it with the listing.
Your manual lists the part numbers and the service steps. Our flushing and descaling guide helps plan the job.
How the Eastman 3/4" Expansion Tank Tee stacks up against the closest alternative, the JUGGHOME Expansion Tank Brackets.
| Criterion | Eastman 3/4" Expansion Tank Tee | JUGGHOME Expansion Tank Brackets |
|---|---|---|
| Our rating | 7.5/10 | 6.5/10 |
| Certification | Stated | Not stated |
On our rating, the Eastman 3/4" Expansion Tank Tee comes out ahead (7.5 vs 6.5), so it is the one to start with.
We rate it 7.5/10 (very good). The rating comes from its documented listing alone, as no customer-review record is captured yet.
Your exact model: find the model and part number in your heater's manual and compare it with the listing. The manual: your manual lists the part numbers and the service steps. Our flushing and descaling guide helps plan the job.
We link to the exact listing on Amazon, where today's price, stock and seller apply. It is an affiliate link, and it has no effect on the rating.
No, we haven't used it ourselves. Everything on this page comes from its listing, read line by line and weighed with our published formula.