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Watts ETX-30 Non-Potable Water Carbon Steel Expansion
18th Jul 2026, 11:21 PM

Watts ETX-30 Non-Potable Water Carbon Steel Expansion Tank for Closed Loop Hydronic Heating System Piping, 1 /2 inch MNPT Connection, Tank Volume 4.7 Gallons, Maximum Pressure 75 psi

Price may vary by location, shipping cost, and availability.
Lowest in last 5 months
77% Off
$53.87
$229.99

Highest: $74.34
Average: $67.43
Lowest: $53.87

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Based our analysis and observation, there is 57.85% chance that the price of Watts ETX-30 Non-Potable Water Carbon Steel Expansion... will increase. Price of product might fluctuate around 3% from current price.*

Price History Graph

Offer Price Prices
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Price History Information

You can check the price history of Watts ETX-30 Non-Potable Water Carbon Steel Expansion Tank for Closed Loop Hydronic Heating System Piping, 1 /2 inch MNPT Connection, Tank Volume 4.7 Gallons, Maximum Pressure 75 psi here. This product's current Price in USA is $53.87. The average and highest prices are $67.43 and $74.34 respectively.

Lowest Ever Price $53.87
19th Jun 2026
Average Price $67.43
Based on 166 days price tracking
Highest Price $74.34
14th Mar 2026

Current Price in USA

Price $53.87
MRP $229.99
Savings $176.12
Discount 76.57%

Recent Price Drops on Watts ETX-30 Non-Potable Water Carbon Steel Expansion Tank for Closed Loop Hydronic Heating System Piping, 1 /2 inch MNPT Connection, Tank Volume 4.7 Gallons, Maximum Pressure 75 psi

Price Drop 18th Jun 2026
$73.88 $53.87
27.08% drop
Price Drop 21st Mar 2026
$74.34 $68.90
7.32% drop

Product Information

Details

Product Name Watts ETX-30 Non-Potable Water Carbon Steel Expansion Tank for Closed Loop Hydronic Heating System Piping, 1 /2 inch MNPT Connection, Tank Volume 4.7 Gallons, Maximum Pressure 75 psi
Store Product Code B0086DDNEI
Store Name amazon.com
Rating 9.2 / 10
Category Tanks & Reservoirs
Product Manufacturer Watts
Model Number ETX-30
Dimensions 10.8 x 11.1 x 14.8 inches

Features

  • WATER EXPANSION TANK: With a generous 4.5 tank gallon volume, the Watts Non-Potable Water Expansion Tank is designed for use in commercial and residential closed loop hydronic heating system piping to control the thermal expansion of hot water and maintain system pressure below the relief setting of the relief valve.
  • DURABLE CONSTRUCTION: This tank is constructed from high-quality carbon steel with an epoxy finish, ensuring long-lasting performance. It is also equipped with a durable expansion membrane that minimizes the loss of the air charge.
  • VERSATILE MOUNTING: This tank is designed for easy installation, mounting directly to the supply piping. It features a 1/2" MNPT system connection and a 0.302-32" charging valve connection (standard tire valve) to facilitate on-site charging.
  • HIGH PRESSURE CAPACITY: Pre-charged at 12 psi, this expansion tank is built to withstand the demands of hydronic heating systems, boasting a maximum pressure rating of 60 psi. It works in tandem with hot water heaters to absorb increased water volume, preventing system overpressure and ensuring the longevity and efficiency of the heating system.
  • EVERY DROP COUNTS: Water. It's in our name and close to our hearts. Since 1874, Watts Water Technologies has been delivering innovative technologies that make the world's most precious resource safe and accessible. Everything we design is made to keep the Earth's most precious resource safer, cleaner, and more useful for our customers. Our family of brands offers one of the most varied product lines in the world, with world-class, water-related solutions.

Images

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Image of Watts ETX-30 Non-Potable Water Carbon Steel Expansion Tank for Closed Loop Hydronic Heating System Piping, 1 /2 inch MNPT Connection, Tank Volume 4.7 Gallons, Maximum Pressure 75 psi
Image of Watts ETX-30 Non-Potable Water Carbon Steel Expansion Tank for Closed Loop Hydronic Heating System Piping, 1 /2 inch MNPT Connection, Tank Volume 4.7 Gallons, Maximum Pressure 75 psi
Image of Watts ETX-30 Non-Potable Water Carbon Steel Expansion Tank for Closed Loop Hydronic Heating System Piping, 1 /2 inch MNPT Connection, Tank Volume 4.7 Gallons, Maximum Pressure 75 psi
Image of Watts ETX-30 Non-Potable Water Carbon Steel Expansion Tank for Closed Loop Hydronic Heating System Piping, 1 /2 inch MNPT Connection, Tank Volume 4.7 Gallons, Maximum Pressure 75 psi
Image of Watts ETX-30 Non-Potable Water Carbon Steel Expansion Tank for Closed Loop Hydronic Heating System Piping, 1 /2 inch MNPT Connection, Tank Volume 4.7 Gallons, Maximum Pressure 75 psi
Image of Watts ETX-30 Non-Potable Water Carbon Steel Expansion Tank for Closed Loop Hydronic Heating System Piping, 1 /2 inch MNPT Connection, Tank Volume 4.7 Gallons, Maximum Pressure 75 psi
Image of Watts ETX-30 Non-Potable Water Carbon Steel Expansion Tank for Closed Loop Hydronic Heating System Piping, 1 /2 inch MNPT Connection, Tank Volume 4.7 Gallons, Maximum Pressure 75 psi

Rating and Reviews

9.2 Based on 616 reviews

Watts ETX-30 Non-Potable Water Carbon Steel Expansion has 9.2 rating out of 10. This average rating is consist of 616 individual ratings. You can rate this product at product review page.

* Predictions is created on based of past prices and trends, it does not guarantee that it will happen. These are just prediction for theoretical information only.