This is a SmartPak® DQ3 replacement cartridge for Millipore (now Merck Millipore) laboratory pure and ultrapure water systems, including the Direct-Q / RiOs / Synergy / Simplicity series. This is a professional-grade consumable for laboratories and analytical facilities, and is a core component containing ion exchange resin and high-purity purification media, designed to produce ultrapure water of 18.0 MΩ·cm class. This product is unused and uninstalled, and includes: - Certificate of Quality - Replacement instructions that were included at the time of manufacture. The manufacturing date is January 30, 2012. This product is intended more for equipment maintenance, spare parts, and business inventory rather than for warranty purposes in current research applications. One of the six black protective caps on the upper port is missing. This is a protective cap for transportation and storage, and is removed during actual use, so it does not affect functionality or use. Due to the specialized nature of this part, please purchase only if you understand its application and compatible models. [Compatible Models Example] Direct-Q / RiOs / Synergy / Simplicity series (Please check the model number for details) [Model Number] SPR00SIA1 SmartPak® DQ3 [Condition] Unused (Long-term storage) *The outer box has some scratches due to storage. [About the Price] Eco-Mercari shipping recommended (under 160 size). Please cooperate with the placement delivery and placement delivery as much as possible. Please cooperate in reducing shipping costs. We may offer a price reduction depending on the situation. Please refrain from commenting and use the price proposal button. *Due to the specialized nature of this product, returns and refunds are not accepted. --- For overseas buyers: This is an unused genuine Millipore SmartPak DQ3 cartridge for laboratory ultrapure water systems. Ideal for maintenance stock or replacement parts for Direct-Q series systems.