Product Description [𝐂𝐫𝐞𝐚𝐭𝐢𝐯𝐞 𝐬𝐨𝐥𝐮𝐭𝐢𝐨𝐧 𝐟𝐨𝐫 𝐭𝐚𝐧𝐤𝐥𝐞𝐬𝐬 𝐑𝐎 𝐬𝐲𝐬𝐭𝐞𝐦𝐬]: This mini water tank is designed to unlock more functions in tankless reverse osmosis systems specifically: a) allow your tankless RO system to work perfect with refrigerator or ice maker, avoiding frequent reboot. b) Extend using distance of RO system, ensuring constant water flow or ice if there’s a long distance between RO system and refrigerator or ice maker. c) Get water fast from refrigerator without wait. [𝐂𝐨𝐧𝐯𝐞𝐧𝐢𝐞𝐧𝐭 𝐢𝐧𝐬𝐭𝐚𝐥𝐥𝐚𝐭𝐢𝐨𝐧]: The user manual provides simple instructions on how to install this water pressure tank. You get a 1/4″quick-connect design out-of-the-box. All you have to do to complete the installation is to cut off the water outlet tubing of the tankless RO water filter systems, then insert both ends of the tubing into the tank. [𝐁𝐞𝐬𝐭-𝐢𝐧-𝐜𝐥𝐚𝐬𝐬 𝐪𝐮𝐚𝐥𝐢𝐭𝐲]: This small water storage tank has passed several tests, such as burst, pulse, static pressure, fall off, and tightness tests. The tank is super-durable and will not even leak in the event of high pressure. You also get a 1-year service. [𝐏𝐫𝐞𝐦𝐢𝐮𝐦 𝐚𝐧𝐝 𝐬𝐚𝐟𝐞 𝐦𝐚𝐭𝐞𝐫𝐢𝐚𝐥𝐬]: Only high-quality food-grade materials make up each component of this product. They are 100% safe and sustainable. The presence of carbon steel also adds more durability. [𝐓𝐚𝐧𝐤 𝐬𝐢𝐳𝐞]: Despite the small size (4.1 x 4.1 x 7.3 inches), the reverse osmosis tank offers a large capacity, especially under the sink. Enjoy a steady water flow with a 1L large capacity, as well as uniform, clearer ice cubes. Perfectly fits for PD600-TAM3, PD500, PD400, PX500-A, RO500AK, tankless RO systems. With Tankless RO Systems Compatibility Smaller Size, Large Capacity Top Quality