It all started with a pool.

North American Filtration, Inc., is the holding company to five companies, representing eight major product lines servicing the chemical, food processing, water and wastewater industries. The Company was founded by David J. Painter in the early 1970s.

Our companies

Mer-Made Filter

Mer-made is a significant provider of standard & custom-made commercial pool filtration products. The company is headquartered in Denmark, South Carolina. With manufacturing facilities located throughout the United States. The company produced “the most cost-effective improvement in commercial sand filter systems, fiberglass pool & industrial pump strainers, vacuum diatomaceous earth (D.E) filters, float (modulating) valves and many more products available today.”

Mermade is the world leader in the design and development of commercial pool filtration systems and a major supplier of commercial sand filter systems, fiberglass pool and industrial pump strainers, level control (positive valves), reducers, segmented surge/balance tank, and custom fabrications. Mermade is noted for its innovative designs and the quality of its products.

LEEM Filtration

LEEM Filtration is a diversified manufacturer and engineering designer of products for filtration. We produce North American Hercules® filters as well as automation packages, components and parts for them. We have engineers and manufacturer's representatives available to our customers and potential customers throughout the U.S. and Canada.

Our job is to serve you well with the most cost-effective products and services for your operation. Toward that end, we hope that you will find this catalog both interesting and informative.

Mass Transfer Systems

Since 1984, Mass Transfer Systems (MTS) has been supplying jet aeration and mixing systems to industries and municipalities throughout the world. The majority of our products consist of "engineered systems" for biological and waste treatment processes, as well as a variety of industrial mixing applications. and a variety of industrial mixing applications.

In 1995, MTS began offering a product line of submersible self-aspirating aerators to provide oxygen for both municipal and industrial biological and other waste treatment processes. The submersible self-aspirating aerator does not require a forced air system (ie. blowers) and is easily installed into existing treatment tanks with little or no modification to the tank.


NEFCO is a major provider of engineered fiberglass products to the Water and Wastewater Treatment Industry. The company is headquartered in Palm Beach Gardens, FL. with manufacturing facilities located throughout the United States. NEFCO was founded in the late 1980s in Stamford, Connecticut. The company produced the first operational FRP Density Current Baffle for the Stamford WWTP based on a concept developed by Bob Crosby and the Stamford treatment plant staff. Soon after that, the company was producing “Stamford Baffles” for many Connecticut cities under the auspices of a statewide grant program for treatment plant improvements. The Connecticut DEP described the Density Current Baffle as “the most cost-effective improvement in clarifier performance available today.”

Chemtrac Inc.

Since 1985, Chemtrac Inc. has been a leading manufacturer of process monitoring and control instruments used in water, wastewater, and other industrial processes. However, the company’s reputation and growth have been built around one mission – “RESULTS for the customer”. This will never change. We understand that our success depends on meeting and exceeding our customer's expectations. With defined objectives and joint commitments, we will achieve the results you want.

Sanborn Technologies

Sanborn Technologies is a world leader in the design, manufacture, and supply of separation equipment and systems for industrial applications. With our international trade alliances, we can provide the best separation equipment for your specific application. Our extensive line of centrifugal, filtration and coalescing systems provides a single source for manufacturing facilities and OEM's looking for a reliable, high-quality supplier. We offer state-of-the-art, proven solutions for most recycling, product recovery, and waste minimization applications.

Visit Us

25 Arrow road
Ramsey, NJ 07446


Mon – Fri 9 am – 5 pm
Saturday/Sunday Closed