--- product_id: 214893510 title: "iSpring T32M 4 Gallon Residential Pre-Pressurized Water Storage Tank for Reverse Osmosis (RO) Systems" brand: "ispring" price: "¥89952" currency: JPY in_stock: true reviews_count: 5 url: https://www.desertcart.jp/products/214893510-ispring-t32m-4-gallon-residential-pre-pressurized-water-storage-tank store_origin: JP region: Japan --- # 3.2 Gallon Capacity Closed Pressurized Air Bladder Stainless Steel Connections iSpring T32M 4 Gallon Residential Pre-Pressurized Water Storage Tank for Reverse Osmosis (RO) Systems **Brand:** ispring **Price:** ¥89952 **Availability:** ✅ In Stock ## Summary > 💧 Elevate your hydration game with instant, pure water on tap! ## Quick Answers - **What is this?** iSpring T32M 4 Gallon Residential Pre-Pressurized Water Storage Tank for Reverse Osmosis (RO) Systems by ispring - **How much does it cost?** ¥89952 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/214893510-ispring-t32m-4-gallon-residential-pre-pressurized-water-storage-tank) ## Best For - ispring enthusiasts ## Why This Product - Trusted ispring brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Durable Build:** Premium stainless steel fittings ensure zero leaching and long-lasting reliability. - • **Safe & Sanitary:** Closed expansion tank design prevents contamination and pollutant ingress. - • **Trusted Quality:** NSF/ANSI certified and highly rated by thousands of satisfied users. - • **On-Demand Pure Water:** Pressurized tank delivers instant RO water flow without wait. - • **Perfect Fit Under Sink:** Compact 3.2-gallon size designed for seamless under-sink installation. ## Overview The iSpring T32M is a 3.2-gallon pre-pressurized water storage tank designed for reverse osmosis systems. Featuring a closed air bladder and stainless steel connections, it ensures safe, contaminant-free water delivery on demand. Compact and NSF/ANSI certified, it fits neatly under your sink, providing reliable, high-quality RO water with a 4.6-star rating from over 4,400 users. ## Description iSpring T32M 3.2 Gallon Pressurized Storage Tank for Reverse Osmosis (RO) Systems The reverse osmosis process is on the slower side, so a pressurized storage tank is typically required to supply water from the system on demand. Your RO system will fill the T32M tank to capacity, and when you open your RO water dispenser the water is sent out by the tank's pressurized air bladder. The concern that pollutants may be allowed in when using an open air tank favors the use of a closed expansion tank such as the T32M. The tank uses stainless steel connections to avoid any leaching concerns, tested by independent third-party to meet NSF/ANSI Standard. ## Features - RO ## Technical Specifications | Specification | Value | |---------------|-------| | Asin | B00439MYYE | | Brand Name | iSpring | | Capacity | 3.2 Gallons | | Container Type | Dispenser | | Customer Reviews | 4.6 4.6 out of 5 stars (4,490) 4.6 out of 5 stars | | Global Trade Identification Number | 00662425023684 | | Installation Type | Under Sink | | Item Weight | 3.63 kg | | Lowertemperature Range | 40 Degrees Fahrenheit | | Manufacturer | iSpring | | Manufacturer Part Number | T32M | | Model Name | Kit 1 | | Model Number | FT32M | | Number Of Items | 1 | | Number Of Packs | 1 | | Other Special Features Of The Product | RO | | Power Source Type | Corded Electric | | Purification Method | Reverse Osmosis | | Supported Water Tds Level Maximum Ppm | 500 | | Unit Count | 1.00 Count | | Upc | 662425023684 | ## Product Details - **Brand:** iSpring - **Special Feature:** RO - **Capacity:** 3.2 Gallons - **Package Information:** Dispenser - **Installation Type:** Under Sink ## Images ![iSpring T32M 4 Gallon Residential Pre-Pressurized Water Storage Tank for Reverse Osmosis (RO) Systems - Image 1](https://m.media-amazon.com/images/I/51GBWLclIKL.jpg) ![iSpring T32M 4 Gallon Residential Pre-Pressurized Water Storage Tank for Reverse Osmosis (RO) Systems - Image 2](https://m.media-amazon.com/images/I/71-lWKH5aYL.jpg) ![iSpring T32M 4 Gallon Residential Pre-Pressurized Water Storage Tank for Reverse Osmosis (RO) Systems - Image 3](https://m.media-amazon.com/images/I/71F495NElaL.jpg) ![iSpring T32M 4 Gallon Residential Pre-Pressurized Water Storage Tank for Reverse Osmosis (RO) Systems - Image 4](https://m.media-amazon.com/images/I/71aGlj+pR+L.jpg) ![iSpring T32M 4 Gallon Residential Pre-Pressurized Water Storage Tank for Reverse Osmosis (RO) Systems - Image 5](https://m.media-amazon.com/images/I/716+5a0T8-L.jpg) ## Available Options This product comes in different **Set name** options. ## Questions & Answers **Q: Can I connect 2 tanks together for more water storage?** A: I put two 3.2 gal tanks together with a tee last month. It works fantastic!! **Q: Anyone know if this will work for Whirlpool RO systems? The support rep told me any RO tank would work. Anyone use this for another system?** A: I don't think it matters what RO system you have. If it has the option for a reserve tank and the fitting works, then it should fill with water. **Q: What is the pressure rating for the tank. Can it handle 60 psi?** A: Remember that the RO system water valve regulates the "internal" pressure, so the tank is not going to see the actual water line pressure. Most valves operate at 65%, so if your water line pressure is 60 psi, the pressure at the tank generally won't be more than 40 PSI. In most setups you'd need the pressure on the water line to be around 92 PSI to get 60 PSI on the tank. **Q: What is the diameter of the 5.5 gal tank?** A: Thanks for the question! The diameter of the tank is 12" x 16" (H) Kindest, iSpring Team ## Customer Reviews ### ⭐⭐⭐⭐⭐ 品質は大切です *by on Reviewed in Japan 6 February 2026* 投稿が遅くなりました。もう何年長い間利用していても、特に問題なく利用しています。もちろん、水の出方が弱くなった時は、空気を入れるなどのメンテナンスは必要です。フィルターを替えるタイミングで、メンテナンスをするくらいです。 ### ⭐⭐⭐⭐⭐ Un depósito de calidad *by on Reviewed in Spain 8 May 2026* Buena construcción, buena capacidad, buena presión del agua. Justo lo que necesitaba. ### ⭐⭐⭐⭐⭐ Top quality product, great seller *by on Reviewed in the United Kingdom 25 March 2024* I am absolutely thrilled with my RO pressure tank! This product has completely exceeded my expectations in terms of performance and durability. I'm giving it a solid five-star rating! Tank maintains consistent pressure levels throughout the day, ensuring a steady flow of purified water whenever I need it. The build quality of this pressure tank is exceptional. It feels sturdy and well-made, capable of withstanding the rigors of daily use without any signs of wear or deterioration. I'm confident that it will continue to perform flawlessly for years to come. It fits neatly under my sink without taking up too much room, which is perfect for my kitchen. I appreciate the thoughtful design that prioritizes functionality without sacrificing space. I also want to commend the company for their exceptional customer service. When I had a question, their support team was incredibly helpful and responsive. It's refreshing to encounter a company that truly values their customers and goes above and beyond to ensure their satisfaction. Overall, I couldn't be happier with my RO pressure tank. It's a top-quality product that delivers on its promises, and coupled with outstanding customer service, I highly recommend it to anyone in need of reliable water pressure for their RO system. ## Frequently Bought Together - iSpring T32M Pressurized Water Storage Tank with Ball Valve for Reverse Osmosis RO Systems, 4 Gallon, 1/4" Tank Valve Included - iSpring Greatwell Reverse Osmosis Membrane 75 GPD 11.75” X 1.75”, Replacement Fits Standard Under Sink RO Drinking Water Filtration System, MC7 - iSpring F9K NSF Certified 1-Year Reverse Osmosis Water Filter Replacement Pack, Alkaline Remineralization Filters for 6-Stage RO Systems, Without RO Membrane --- ## 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.jp/products/214893510-ispring-t32m-4-gallon-residential-pre-pressurized-water-storage-tank](https://www.desertcart.jp/products/214893510-ispring-t32m-4-gallon-residential-pre-pressurized-water-storage-tank) --- *Product available on Desertcart Japan* *Store origin: JP* *Last updated: 2026-08-22*