--- product_id: 14210411 title: "Thermal Expansion Tank, 4.5 Gallon, 3/4 In MPT, for 50 to 100 Gallon Water Heater Tanks Steel, 60023" brand: "eastman" price: "Β₯47252" currency: JPY in_stock: true category: "Eastman" url: https://www.desertcart.jp/products/14210411-thermal-expansion-tank-4-5-gallon-3-4-in-mpt store_origin: JP region: Japan --- # 210Β°F max temp rating 3/4 in MIP connection 4.5 gal capacity Thermal Expansion Tank, 4.5 Gallon, 3/4 In MPT, for 50 to 100 Gallon Water Heater Tanks Steel, 60023 **Brand:** eastman **Price:** Β₯47252 **Availability:** βœ… In Stock ## Summary > πŸ”₯ Protect your water heater like a pro β€” no leaks, no stress! ## Quick Answers - **What is this?** Thermal Expansion Tank, 4.5 Gallon, 3/4 In MPT, for 50 to 100 Gallon Water Heater Tanks Steel, 60023 by eastman - **How much does it cost?** Β₯47252 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/14210411-thermal-expansion-tank-4-5-gallon-3-4-in-mpt) ## Best For - eastman enthusiasts ## Why This Product - Trusted eastman brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - β€’ **Safety First:** Prevents damaging thermal expansion pressure spikes up to 150 PSI - β€’ **Built to Last:** Durable butyl rubber diaphragm with 304 stainless steel connection ensures long-term reliability - β€’ **Pressure Perfected:** Pre-charged at 40 PSI for instant, hassle-free installation - β€’ **Effortless Integration:** Compact 11.1"W x 16"H design fits seamlessly into your existing water heater system - β€’ **Peace of Mind Warranty:** Backed by a 6-year limited warranty for trusted protection ## Overview The Eastman Thermal Expansion Tank (4.5 gal) safeguards your water heater from pressure damage caused by thermal expansion. Featuring a factory pre-charged 40 PSI butyl rubber diaphragm and 304 stainless steel connection, it supports up to 150 PSI and 210Β°F. Easy to install with a 3/4 in MIP connection and backed by a 6-year warranty, it’s the smart upgrade for lasting water heater performance. ## Description Product Description This Thermal Expansion Tank prevents hot water from back flowing into the cold water line. This tank also prevents hot water from escaping through the pressure relief valve and onto the floor. The thermal expansion tank prevents constant fluctuations in water pressure From the Manufacturer This Thermal Expansion Tank prevents hot water from back flowing into the cold water line. This tank also prevents hot water from escaping through the pressure relief valve and onto the floor. The thermal expansion tank prevents constant fluctuations in water pressure that damage the heater. ## Features - alloy steel - Imported - RELIABLE PROTECTION: Eastman thermal expansion tanks are designed with quality to prevent hot water from backflowing into the cold water line, they also avoid pressure build-ups that can be dangerous for your water heater - DIMENSIONS: This 4.5 gallon expansion tank measures 16-inch x 11. 1-Inch x 10. 9-Inch with 3/4-inch MIP connection - MATERIAL: It has a high-quality butyl rubber diaphragm and grade 304 stainless steel fittings for long-lasting performance - QUALITY: Eastman backs the unparalleled operation of this product with years of experience in manufacturing plumbing products - COMPATIBILITY: Compatible with water heaters and boilers with a capacity of 50 gallons to 100 gallons ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B005E83Z4G | | Best Sellers Rank | #126,880 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #220 in Water Heater Replacement Parts #19,343 in Parts & Accessories | | Brand | Eastman | | Brand Name | Eastman | | Capacity | 4.5 gallons | | Color | White | | Customer Reviews | 4.7 out of 5 stars 703 Reviews | | Global Trade Identification Number | 00091712600237 | | Included Components | Electrical & Heating;Door Chimes;doorbell-push-buttons | | Item Depth | 11.5 inches | | Item Dimensions W x H | 11.1"W x 16"H | | Item Type Name | Det-12 Thermal Expansion Tank, 4.5 Gal, 3/4 In Mpt, Steel | | Item Weight | 5.2 pounds | | Manufacture Year | 2023 | | Manufacturer | Eastman | | Manufacturer Part Number | 60023 | | Material Type | Alloy Steel | | Maximum Pressure | 150 psi | | Maximum Temperature | 210 Β°F | | Model Number | 60023 | | Mount Type | Wall | | Number of Items | 1 | | Number of Packs | 1 | | Power Source | Ac/dc | | Product Dimensions | 11.1"W x 16"H | | Special Feature | Thermal Expansion | | Special Features | Thermal Expansion | | Style Name | Indoor Installation | | UPC | 091712600237 | | Unit Count | 1 Count | ## Product Details - **Brand:** Eastman - **Capacity:** 4.5 gallons - **Power Source:** Ac/dc - **Product Dimensions:** 11.1"W x 16"H - **Special Feature:** Thermal Expansion ## Images ![Thermal Expansion Tank, 4.5 Gallon, 3/4 In MPT, for 50 to 100 Gallon Water Heater Tanks Steel, 60023 - Image 1](https://m.media-amazon.com/images/I/610HT8g-DrL.jpg) ## Available Options This product comes in different **Size** options. ## Questions & Answers **Q: is this for patable water?** A: Yes, this for use with potable water. **Q: Is this for a 50 gallon tank?** A: If your water pressure is below 70 PSI, this tank will work. If it is 80 PSI, you will need the larger 4 gallon model. Refer to this guide http://media.wattswater.com/pg-thermexpansion.pdf/. **Q: Do i need this if my boiler has one and water heater is close by** A: Heating boiler piping system is typically isolated from the water piping system for the rest of the house (such as by a pressure reducing or check valve to drop the house water pressure of ~ 60 psi to the typical less than 20 psi of the heating boiler side). Therefore the heating boiler expansion tank function would not effect the hot water boiler thermal expansion. Heating boiler thermal expansion tanks are typically factory charged to 12 psi while those for hot water tank are charged to 40 psi. ps I am not a professional so you may want to do more research of your own. **Q: is this a suitable replacement for the Amtrol Extrol 2 gallon ?** A: Yes it a suitable replacement. ## Frequently Bought Together - Eastman 60023 Thermal Expansion Tank, 4.5 Gal, 3/4 in Mpt, Steel, White - Eastman 86288 Universal Stainless Steel Water Heater Expansion Tank Mounting Bracket, 5 Gallon or 13 inches --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.jp/products/14210411-thermal-expansion-tank-4-5-gallon-3-4-in-mpt](https://www.desertcart.jp/products/14210411-thermal-expansion-tank-4-5-gallon-3-4-in-mpt) --- *Product available on Desertcart Japan* *Store origin: JP* *Last updated: 2026-11-11*