WM Filter, established in 1989, is a family-owned business located in Naples, Florida. 

Our commitment to exceptional customer service is matched by our dedication to providing pure drinking water and eco-friendly air products. 

All Water Marque water filters are proudly manufactured in the USA and feature NSF-certified components. While we do offer some products not made domestically, rest assured that our core items maintain the highest quality standards. 

As the sole authorized provider of NSA replacement products, WM Filter has been entrusted with this responsibility since January 1, 2008. With over 25 years of partnership, NSA Inc. recognizes WM Filter (Water Marque) as their premier choice for replacement programs.


You can easily order all NSA Air and Water replacement products by contacting WM Filter at 1-800-959-0708. 



Toll Free: 1-800-959-0708

Local: 239-643-2215

Fax: 239-643-6707

Email: [email protected]