--- product_id: 38786842 title: "Falcon Stainless EXPT-2 Thermal Potable Water Expansion Tank 2.1 Gal with Butyl Bladder/Polypropylene Liner and Stainless Steel 3/4-Inch Male Thread Connection for up to 50-Gallon Water Heaters" brand: "falcon stainless inc." price: "$95.92" currency: USD in_stock: false reviews_count: 9 url: https://www.desertcart.us/products/38786842-falcon-stainless-expt-2-thermal-potable-water-expansion-tank-2 store_origin: US region: United States of America --- # 100% pressure tested, 5-year warranty Stainless steel 3/4-inch male thread 16-gauge solid steel tank Falcon Stainless EXPT-2 Thermal Potable Water Expansion Tank 2.1 Gal with Butyl Bladder/Polypropylene Liner and Stainless Steel 3/4-Inch Male Thread Connection for up to 50-Gallon Water Heaters **Brand:** falcon stainless inc. **Price:** $95.92 **Availability:** ❌ Out of Stock ## Summary > 🔥 Upgrade your water system with corrosion-proof power! 🛠️ ## Quick Answers - **What is this?** Falcon Stainless EXPT-2 Thermal Potable Water Expansion Tank 2.1 Gal with Butyl Bladder/Polypropylene Liner and Stainless Steel 3/4-Inch Male Thread Connection for up to 50-Gallon Water Heaters by falcon stainless inc. - **How much does it cost?** $95.92 with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/38786842-falcon-stainless-expt-2-thermal-potable-water-expansion-tank-2) ## Best For - falcon stainless inc. enthusiasts ## Why This Product - Trusted falcon stainless inc. brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Guaranteed Reliability:** 100% pressure tested and backed by a 5-year limited warranty for peace of mind. - • **Precision Pressure Regulation:** Steel clench ring prevents diaphragm wear, maintaining flawless system performance. - • **Robust 16-Gauge Steel Construction:** Solid steel tank with high-grade urethane finish for ultimate protection and longevity. - • **Corrosion-Resistant Stainless Steel:** Premium stainless steel connection ensures long-lasting durability and zero rust. - • **Optimized for 50-Gallon Water Heaters:** Perfectly sized 2.1-gallon capacity to eliminate thermal expansion pressure efficiently. ## Overview The Falcon Stainless EXPT-2 Thermal Expansion Tank features a durable 16-gauge steel body with a corrosion-resistant stainless steel connection, designed to handle up to 50-gallon water heaters. Its steel clench ring ensures diaphragm longevity, while 100% pressure testing and a 5-year warranty guarantee reliable, maintenance-free performance. ## Description Falcon Stainless potable water expansion tanks are designed to maintain safe pressure in domestic water systems that utilize a back flow preventer or check valve. Falcon Stainless tanks feature a 100% butyl diaphragm and plastic liner to separate the system water from the tanks air pre-charge. The system has a stainless steel connection to prevent corrosion making it even more reliable. And, the tanks are finished with appliance quality paint which helps prevent external corrosion. When forced to choose between Quality and Cost, remember with Falcon you can have both! Peace of mind, full-port connections, completely listed, tested and approved and a 5 Year Warranty. Review: Mighty Fine Construction - Nicely made hardware. Follow installation instructions. At one point it suggests not installing the tank sideways because of the stress it's weight, when filled with water, would have on the copper pipes and solder joints. 8.3 lbs per gallon of water. 2.1 Gallon (if the bladder fails?) is 17.7 lbs. In a later section it shows a sideways installation with a SUPPORT for the tank. Support the tank if you must install it sideways. Vertical installation is urged. Nozzle up or nozzle down? Nozzle down/tank up above my electronics-laden Heat Pump Water Heater, looks easy enough but what if something should leak onto the electronics? No. Not above the heater in any direction for me. From other reviews I concluded nozzle down/tank up is ideal because even if the bladder eventually fails, the air trapped above will still have a cushion effect which will help keep the system pressure lower during expansion. I built a wooden framework secured to the basement ceiling joists off to the side of the HPWH. The tanks rests in it with the connecting flex tube (from the nozzle) joined to a copper T-fitting. I left enough space at the top to access the schrader valve for occasional checking and refilling with air. Our neighborhood around 55 psi. Review: Great product good price - Great product at a good price. I installed the tank took about 2 hrs. Plumbling experience is helpful. Filled the tank psi to what my water pressure was no problems. Great product and solve a problem of having excessive pressure. Disappointed that tanks are made in China but 99% of them are. Good quality and painted very good overall very happy. ## Features - Stainless Steel water connection to reduce corrosion. - 16 gauge solid steel tank, finished with highest quality urothane paint. - Steel clench ring regulates movement and prevents diaphragm from rubbing against tank wall. - 100% Pressure tested and backed with a 5 year limited warranty. - Falcon Stainless E.T. series thermal expansion tanks 100% effectively eliminate built up system pressure. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B01M7SWXMT | | Batteries Included? | No | | Batteries Required? | No | | Customer Reviews | 4.8 4.8 out of 5 stars (181) | | Date First Available | October 22, 2016 | | Is Discontinued By Manufacturer | No | | Item Package Quantity | 1 | | Item Weight | 5 pounds | | Manufacturer | Falcon Stainless, Inc. | | Material | 16 Gauge Steel | | Measurement System | inch | | Number Of Pieces | 1 | | Part Number | EXPT-2 | | Product Dimensions | 8 x 8 x 12.75 inches | | Size | Falcon 2.1 Gallon (1-Pack) | ## Images ![Falcon Stainless EXPT-2 Thermal Potable Water Expansion Tank 2.1 Gal with Butyl Bladder/Polypropylene Liner and Stainless Steel 3/4-Inch Male Thread Connection for up to 50-Gallon Water Heaters - Image 1](https://m.media-amazon.com/images/I/517wseMgxcL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Mighty Fine Construction *by J***S on October 9, 2018* Nicely made hardware. Follow installation instructions. At one point it suggests not installing the tank sideways because of the stress it's weight, when filled with water, would have on the copper pipes and solder joints. 8.3 lbs per gallon of water. 2.1 Gallon (if the bladder fails?) is 17.7 lbs. In a later section it shows a sideways installation with a SUPPORT for the tank. Support the tank if you must install it sideways. Vertical installation is urged. Nozzle up or nozzle down? Nozzle down/tank up above my electronics-laden Heat Pump Water Heater, looks easy enough but what if something should leak onto the electronics? No. Not above the heater in any direction for me. From other reviews I concluded nozzle down/tank up is ideal because even if the bladder eventually fails, the air trapped above will still have a cushion effect which will help keep the system pressure lower during expansion. I built a wooden framework secured to the basement ceiling joists off to the side of the HPWH. The tanks rests in it with the connecting flex tube (from the nozzle) joined to a copper T-fitting. I left enough space at the top to access the schrader valve for occasional checking and refilling with air. Our neighborhood around 55 psi. ### ⭐⭐⭐⭐⭐ Great product good price *by P***Y on March 23, 2017* Great product at a good price. I installed the tank took about 2 hrs. Plumbling experience is helpful. Filled the tank psi to what my water pressure was no problems. Great product and solve a problem of having excessive pressure. Disappointed that tanks are made in China but 99% of them are. Good quality and painted very good overall very happy. ### ⭐⭐⭐⭐⭐ Quality potable water expansion tank *by M***D on September 19, 2018* The old potable water expansion tank had failed due to former owners neglecting maintenance on the house water system. The T&P valve failed, the expansion tank failed, the pressure reducing valve failed and the house was feeling full city water pressure which varied between120-140psi. This was an easy swap for the old tank and liked the materials it is made of and apparent quality construction. --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.us/products/38786842-falcon-stainless-expt-2-thermal-potable-water-expansion-tank-2](https://www.desertcart.us/products/38786842-falcon-stainless-expt-2-thermal-potable-water-expansion-tank-2) --- *Product available on Desertcart United States of America* *Store origin: US* *Last updated: 2026-08-27*