📘 Watts manuals • Free online PDFs
Watts logo

Watts Manuals & User Guides

Watts is a global leader in water technologies, manufacturing products for flow control, water quality, and fluid regulation in residential and commercial settings.

Tip: include the full model number printed on your Watts label for the best match.

About Watts manuals on Manuals.plus

Watts (Watts Water Technologies, Inc.) designs and manufactures a comprehensive portfolio of products to control, conserve, and manage fluid and energy flow into, through, and out of buildings. Their solutions range from residential plumbing valves and reverse osmosis systems to large-scale commercial backflow preventers and drainage systems. Founded on innovation, Watts aims to improve comfort, safety, and quality of life through advanced water technologies.

Headquartered in North Andover, Massachusetts, the company serves residential and commercial markets across the Americas, Europe, Asia-Pacific, the Middle East, and Africa. Their product lines include water quality solutions, heating and hot water systems, drainage, and flow control devices known for reliability and compliance with strict safety standards.

Watts manuals

Latest manuals from manuals+ curated for this brand.

WATTS LF25AUB Union Tailpiece kit Instructions

December 10, 2025
WATTS LF25AUB Union Tailpiece kit Specifications: Model: IS-TPK-PRV-SU Compatible with: LF25AUB, LFN45B, and LFN55B Union Types: Threaded, Solder, CEF, PEX, Press, CPVC, Quick Connect Sizes: 1/2" - 2" Product Usage…

WATTS LF Series Union Tailpiece Kit Owner’s Manual

November 19, 2025
WATTS LF Series Union Tailpiece Kit Product Information Model: IS-TPK-PRV-SU Compatible with: LF25AUB, LFN45B, and LFN55B Union Tailpiece kit for Threaded, Solder, CEF, PEX, Press, CPVC, and Quick Connect Unions…

Watts manuals from online retailers

Watts 9D-M3 1/2 Inch Backflow Preventer Instruction Manual

9D-M3 1/2 • October 13, 2025
This manual provides comprehensive instructions for the installation, operation, maintenance, and troubleshooting of the Watts 9D-M3 1/2 inch Backflow Preventer. Ensure safe and efficient use of your backflow…

Watts support FAQ

Common questions about manuals, registration, and support for this brand.

  • How often does my Watts backflow preventer need to be tested?

    Local codes typically require backflow preventers to be tested and inspected at least once per year by a certified tester to ensure the safety of the potable water supply.

  • What is the warranty period for Watts products?

    Watts generally warrants products to be free from defects for one year from the date of original shipment, though specific product lines (like RO systems or commercial valves) may have different terms available on the warranty page.

  • Can I install Watts reverse osmosis systems myself?

    While installation is possible for those with plumbing skills, Watts recommends that meaningful water treatment systems be installed by a trained professional or licensed plumber to ensure compliance with local codes.

  • Where can I find repair kits for Watts valves?

    Repair kits and service parts for backflow preventers, pressure reducing valves, and other devices are detailed in the Watts maintenance manuals and can be ordered through authorized distributors.