⭐ Key Features

•【 Flow-Activated Safety Control 】 The TWS-121S system operates only when water is flowing. After flow stops, the system continues running for 30 minutes to ensure complete purification of water inside the chamber.

•【 TWS-121S High-Flow UV System 】 HQUA TWS-121S is designed for residential and commercial applications, delivering up to 12 GPM flow capacity—ideal for large homes, multi-fixture use water systems.

•【 55W UV Lamp in Compact Housing 】 Powered by an 55W UV lamp in a compact 22" × 3.5" chamber, TWS-121S offers high flow, high capacity, and big-system performance in a smaller, easier-to-install form factor inspired by Water filters designs.

•【 Standard 1” MNPT Connections 】 Features 1" MNPT inlet and outlet for easy integration into whole-house plumbing system, supporting stable high-flow operation without special fittings.

•【 Chemical-Free UV Purification 】 Provides ultraviolet water purification without chlorine or chemicals. Does not change taste, odor, color, pH, conductivity, or the natural chemistry of your water.

•【 304 Stainless Steel & Quartz Glass 】 All wetted parts are constructed from 304 stainless steel and high-purity quartz glass, proven reliable across varying temperatures, pressures, and pH conditions.

•【 Easy Replacement Parts Available on Amazon 】 Replacement components are readily available on Amazon for long-term maintenance: UV Lamp (TWS-12L, ASIN: B07JF2CGWB), Quartz Sleeve (TWS-12Q, ASIN: B07JDRB6LH), Electronic Ballast (TWS-14EB, ASIN: B0H44ZLSKK), Flow Controller (WS-FC, ASIN: B0H491MBBT), Flow Sensor (WS-FS01, ASIN: B0H496XJCG).

🛠️ Specifications

• Brand : HQUA
• Size : 1"+Flow Switch
• Material : Stainless Steel
• Included components : Installation Kit, Adapter, UV bulb, Quartz sleeve, User Manual
• Number of items : 1
• Special features : Heavy Duty
• Type : WATER_PURIFICATION_UNIT
• Item dimensions : H: 3.5 / L: 22.0 / W: 3.5 (Weight: 11.5)
• Package dimensions : H: 5.5 / L: 26.0 / W: 12.0 (Weight: 12.6)

📋 Product Description

Package List: -304 Stainless steel chamber with 1" in/outlet. -2 uv bulbs with 4-pin end. -1 quartz sleeve. -1 electronic ballast. -2 plastic brackets holder. -Several o-rings use for sealing. Check your package with this list once you receive the package. < Maintenance: Clean the quartz sleeve every 6-12 months, replace every 24 months. Replace UV lamp every 12 months to keep best performance.