Pentair FNS Plus 36 Sq. Ft. DE Filter | EC-180007

Pentair FNS Plus 36 DE Pool Filter | EC-180007

The Pentair FNS Plus EC-180007 DE Filter delivers premium water clarity by utilizing diatomaceous earth (DE), one of the most effective filtration medias for pools. With 36 sq. ft. of filtration area, this compact DE filter is perfectly suited for smaller residential pools and spas, providing crystal-clear water and reliable performance. Constructed with a fiberglass-reinforced tank and chemical-resistant components, it is built for long-term durability even under tough pool conditions.

Service and efficiency are central to the FNS Plus design. The EC-180007 features a convenient clamp ring system that allows tool-free access to internal filter grids for easier cleaning and maintenance. The curved vertical grid design increases filtration surface area, optimizing hydraulic performance while maintaining strong water circulation. A built-in High Flow™ manual air relief valve helps release trapped air during startup, ensuring smooth operation, while 2" plumbing connections provide installation flexibility and consistent water flow.

Compact yet powerful, the Pentair FNS Plus 36 is designed to offer the benefits of DE-level clarity in a smaller footprint, making it an excellent choice for homeowners who want professional-grade water quality without a large filter system.

Key Features of the Pentair FNS Plus EC-180007 Filter

• 36 Sq. Ft. DE Filtration Area: Provides high-quality water clarity for small residential pools and spas, filtering out the finest particles.

• DE Media Performance: Uses diatomaceous earth to capture microscopic impurities that standard sand or cartridge filters can’t remove.

• Fiberglass-Reinforced Tank: Rugged, chemical-resistant construction ensures long-lasting performance and resistance to harsh pool environments.

• Curved Vertical Grid Design: Maximizes surface area and promotes better hydraulic efficiency, improving water circulation and filtration results.

• Easy-Access Clamp Ring: Clamp ring system allows quick, tool-free entry into the tank, simplifying grid removal and cleaning.

• High Flow™ Manual Air Relief Valve: Releases trapped air easily during startup, helping the system run more efficiently.

• 2" Plumbing Connections: Larger plumbing connections provide improved hydraulic performance and versatile installation options.

• Trusted FNS Plus Series: Part of Pentair’s proven line of DE filters, known for consistent clarity, strength, and reliable operation.

Specifications

• Model Number: EC-180007
• Maximum Filtration Size: Filters out particulates as small as 5 microns
• Filtration Area: 36 square feet
• Dimensions: 21.5 inches in diameter and 33 inches in height
• Vertical Clearance: 62"
• Weight: Approximately 67 pounds
• Installation: 2 inch plumbing connections and 1-1/2 inch drain port
• Flow Rate: Maximum flow rate of 72 gallons per minute (GPM)
• DE Required: Uses about 3.6 pounds of diatomaceous earth (DE)
• Material: Chemical-resistant, fiberglass-reinforced polypropylene tank

Compatibility

• Pentair 261152 2-Inch Multiport Valve

 Includes

• (1) Pentair EC-180007 FNS Plus DE Filter 36 sq. ft. 
• (1) Complete Filter Grid Pack
• (1) Manual Air Relief Valve
• (1) Steel clamp
• (1) 1-1/2" Drain