Series 300 Modular Valves for Pargreen Water Technologies’
Water Quality Solutions Systems

Model #15b inserted into battery system

To help maintain precise air flow control in residential water treatment systems, Pargreen Water Technologies relies on Smart Products USA’s Model #304/361 in PVDF (Kynar). This Series 300 Modular combination was ideal due to compatibility with ozone, as well as a precise vacuum opening strength.

Pargreen uses the Model #304/361 in their air injection, ozone injection, and scour technologies to protect against backflow of water into the application’s air draw assembly. Available in the United States, these air incorporated systems are applied and installed by plumbing contractors and water conditioning dealers.

About Series 300 Modular Check/Pressure Relief Valves
With their mix and match modular end fittings coupled with customizable components, Series 300 Modular Check Valves are an ideal solution for a wide variety of low pressure, low flow applications. This series is available in six plastic body materials: Polypropylene, Nylon, PVDF, Ultem®, ABS, and Radel®. O-ring options include: Buna-N, EPDM, Viton®, Silicone, Fluorosilicone, Aflas, and Kalrez®. Opening pressures range from 0.11 to 20 PSI. This series comes in a variety of barbed and NPT sizes, as well as other end fitting configuration styles.

About Pargreen Water Technologies
Pargreen Process Technologies and Pargreen Water Technologies are divisions of Pargreen Sales Engineering Corp – established in 1966 as a filtration and separation equipment provider to industry. The water division expanded into consumer water improvement systems in 2015 and now supports a network of plumbing and mechanical contractors engaged in providing water quality solutions. The contractor brands are EverGreen and AspenPro which offer high efficiency and water conserving sustainable solutions for hard water and aesthetic issues – such as iron, manganese, and odors. To learn more, visit