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Watts

Watts ETX-90 15-Gallon Non- Potable Expansion Tank for Closed-Loop Systems

✅ In stock 📉 Price recently dropped
C
Grade
🙂 Fair Price
45.26/100
Current Price
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply to the purchase of this product.
$149.99
Listed $99.99
Analysis Confidence 100%
⚠️ Price may have changed. Last updated 24+ hours ago — confirm on Amazon.
Check Deal at Amazon
Price verified Sep 14, 2026 7:21 PM · Prices & availability subject to change

Is This a Good Price on Amazon?

🙂 Fair Price
  • 🙂Verdict: Fair Price. Small discount vs history. Consider waiting for a better drop.
  • 💰The current price is 29% below what this product typically costs — a notable saving over its usual going rate.
  • 📉Better-priced windows have occurred before, though not frequently — today's price is reasonably competitive.
  • ➡️Pricing has held fairly steady, with no strong push in either direction.

How We Scored This Deal

Price Competitiveness 28/28
Recent Value 0/22
Market Standing 13.26/20
Deal Strength 0/20
Momentum 4/10

📝 Product Overview

🏪 Sold by New World Gas Products
🚚 Shipping Free Shipping

Product Details

This non-potable water expansion tank is for closed loop hydronic heating system piping to control the thermal expansion of hot water and maintain system pressure below the relief sett of the relief valve
The carbon steel tank is pre-charged at 12 psi, has a 15 gallon volume, and features a durable expansion membrane preventing minimizes loss of the air change and ensures long and trouble-free life for the system
Made of carbon steel with epoxy finish, mounts to supply piping, with 3/4 inch MNPT system connection and .302-32 inch charging valve connection for on-site charging of the tank
Maximum pressure 75 psi and can be used in residential or commercial hydronic heating systems
Use in tandem with your hot water heater to absorb increased water volume ensuring long and trouble-free life for the system

⚙️ Specifications

Brand
Watts
Color
Gray
Material
Carbon Steel
Capacity
15 gallons
Item Weight
3 pounds
Specification Met
Buy American Act
Shape
Cylindrical
UPC
098268219470
Manufacturer
Watts
Product Dimensions
15.5 x 15.5 x 15.5 inches
ASIN
B002077ZJA
C
$149.99
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