Members get up to 40% off during MyLowe’s Rewards Week. Shop Now >

Link to Lowe's Home Improvement Home Page

Prices, Promotions, styles, and availability may vary. Our local stores do not honor online pricing. Prices and availability of products and services are subject to change without notice. Errors will be corrected where discovered, and Lowe's reserves the right to revoke any stated offer and to correct any errors, inaccuracies or omissions including after an order has been submitted.

Watts OneFlow Anti-Scale Water Softener System

Get Pricing & Availability

Chemical free treatment for scale prevention and protection
Virtually maintenance free green technology
Requires no control valve, chemical additives or electricity

Best Price. Guaranteed

Find a lower price on an exact item? We'll match it. Some exclusions apply.

FREE Returns

Return it in store or ship it back for free. Eligibility rules apply.

FREE Shipping

Delivery is on us for orders over $45. Some exclusions apply.

This 14 inch tall blue OneFlow(R)-C anti-scale system conditions cold tap water and provides scale protection on internal surfaces to extend the life of equipment by transforming dissolved hardness minerals into harmless, inactive microscopic particles. Used for single residential tankless water heater unit, the specially designed components are installed before a water using device (water heater) to protect against the effects of hard water. OneFlow-C is not a water softener and does not add chemicals or remove minerals, but provides environmentally friendly technology to prevent scale buildup. The OFTWH-C system consists of a single housing with a 3/4 inch FNPT connection and media which should be replaced once every 2 years. Nominal flow rate up to 5 GPM (18.92 LPM).

Chemical free treatment for scale prevention and protection
Virtually maintenance free green technology
Requires no control valve, chemical additives or electricity
Improves equipment efficiency
Flow rate up to 5 GPM