Introducing the Eastman #60023 Water Heater Expansion Tank with a 4.5-gallon capacity. This top-of-the-line product ensures maximum operating pressure of 150 psi and is ideal for use with water heaters. The thermal expansion tank is designed to provide optimal performance and prevent water hammer while protecting the system from excess pressure. With the Eastman brand guarantee, you can trust that this product is built to last. This product comes with a wide range of features, including a maximum operating pressure of 150 psi, making it a must-have for any water heater system. The Eastman #60023 Water Heater Expansion Tank is the perfect addition to any home or business, ensuring the safety and longevity of your water heater system.