![Watts 0066608 Expansion Tank, 3/4 in. 13 Gal. — New England Supply House spec card [NESH-SPEC-CARD-V2]](http://newenglandsupplyhouse.com/cdn/shop/files/nesh-0066608-card.png?v=1793978973&width=1946)
![Watts 0066608 Expansion Tank, 3/4 in. 13 Gal. specifications — New England Supply House [NESH-SPECTABLE-V1]](http://newenglandsupplyhouse.com/cdn/shop/files/nesh-0066608-specs.png?v=1793978973&width=1946)
Watts 0066608 Expansion Tank, 3/4 in. 13 Gal.
Watts 0066608 Expansion Tank, 3/4 in. 13 Gal.
Regular price
$490.97 USD
Regular price
Sale price
$490.97 USD
Shipping calculated at checkout.
Low stock: 1 left
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SKU:0066608
View full details![Watts 0066608 Expansion Tank, 3/4 in. 13 Gal. — New England Supply House spec card [NESH-SPEC-CARD-V2]](http://newenglandsupplyhouse.com/cdn/shop/files/nesh-0066608-card.png?v=1793978973&width=1445)
![Watts 0066608 Expansion Tank, 3/4 in. 13 Gal. specifications — New England Supply House [NESH-SPECTABLE-V1]](http://newenglandsupplyhouse.com/cdn/shop/files/nesh-0066608-specs.png?v=1793978973&width=1445)
The Watts 0066608 is a 3/4 in. expansion tank with a 13-gallon capacity, identified by the manufacturer as model ET-90. It absorbs the volume increase from thermal expansion in a hydronic heating system, reducing stress on the piping.
Confirm this part number against your equipment's parts list before ordering.
Specifications
| Part Number | 0066608 |
|---|---|
| Brand | Watts |
| Type | Expansion Tank |
| Size | 3/4 in. |
| Capacity | 13 gal. |
| Model | ET-90 |