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PENTAIR 36 SqFt FNS® Plus D.E. Filter EC-180007
PENTAIR 36 SqFt FNS® Plus D.E. Filter EC-180007
Pentair FNSP36-EC D.E. pool filter with 36 sq ft filtration area, curved grid design, and chemical-resistant fiberglass tank for superior water clarity and minimal maintenance.
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The Pentair FNSP36-EC D.E. filter features a chemical-resistant fiberglass-reinforced polypropylene tank that provides exceptional strength and durability for long-lasting performance.
Its innovative curved grid design maximizes filtration area for superior water clarity while requiring less frequent maintenance between cleanings. The integrated High Flow manual air relief valve and continuous internal air relief system efficiently eliminate air buildup to maintain optimal filtration and prevent over-pressurization.
This vertical-grid filter minimizes flow restrictions and requires minimal pumping power, making it an energy-efficient choice for crystal-clear pool water.
⭐⭐⭐⭐⭐
Pool owners consistently praise the exceptional durability and long-lasting performance of the fiberglass-reinforced polypropylene tank.
Users appreciate the curved grid design that provides superior filtration and extends time between cleanings.
Many highlight the energy efficiency achieved through minimized flow restrictions and reduced pumping requirements.
Customers value the easy maintenance features, particularly the single-nut removable grid pack and convenient drainage system.
The almond-colored tank receives compliments for its attractive appearance that blends seamlessly into backyard environments.
Curved Grid Design: Maximizes filtration area for better performance and longer periods between cleanings
Chemical-Resistant Tank: Fiberglass-reinforced polypropylene construction ensures exceptional strength and long life
Air Relief System: High Flow manual valve and continuous internal air relief eliminate air buildup for efficient filtration
Easy Maintenance: Removable filter grid pack secured by single nut simplifies cleaning and service
Energy Efficient Design: Minimized flow restrictions require less pumping power to achieve needed flow rates
Complete Drainage: Conveniently located 1" drain allows for efficient cleanout and 100% draining
Maximum Flow Capacity: 2" plumbing connections provide optimal water circulation throughout the system
- Brand: Pentair
- Model: FNSP36-EC (EC-180007)
- Filtration Area: 36 square feet
- Dimensions: 22.5 x 22.5 x 34.5 inches
- Weight: 70 pounds
- Material: Fiberglass-reinforced polypropylene
- Plumbing Connections: 2" inlet/outlet
- Drain Size: 1" for complete drainage
- Certifications: NSF/ANSI Standard 50 Certified
- Tank Color: Almond
- Valve: Sold separately
Q: What makes the curved grid design superior to traditional flat grids?
A: The curved grid design significantly increases the filtration surface area, allowing for better particle capture and longer intervals between cleanings while maintaining optimal water flow.
Q: How does the air relief system work to improve filter performance?
A: The High Flow manual air relief valve and continuous internal air relief work together to automatically eliminate trapped air from the tank, preventing airlocks and maintaining consistent filtration pressure for maximum efficiency.
Q: Is this filter compatible with all pool pump systems?
A: Yes, with its 2" plumbing connections and minimized flow restrictions, this filter works efficiently with most standard pool pump systems while requiring less pumping power than traditional filters.

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Pentair has been a global leader in pool and spa equipment for over 50 years, delivering innovative solutions like IntelliFlo variable-speed pumps, Clean & Clear cartridge filters, IntelliChlor salt systems, and IntelliBrite LED lighting.
Whether you're upgrading your existing setup or starting from scratch, Pentair products are engineered for energy efficiency, durability, and smart control.
At AquaDoc, we're an authorized Pentair distributor carrying their full lineup of pumps, filters, heaters, lights, and sanitizing systems so you can keep your pool running at its best all year round.
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