OEM Pentair Air Vent Strainer 172855 is a 3/4-inch stainless steel replacement component designed for Pentair Nautilus Plus and FNS D.E. pool and spa filters. This strainer serves as a crucial barrier that prevents debris from entering the air valve tube, helping to protect internal components and preserve system performance. Its corrosion-resistant stainless steel construction ensures long-lasting durability even under constant exposure to pool chemicals and water pressure. By maintaining clean air flow through the relief vent, the strainer supports consistent filtration and system safety. Installation is straightforward, offering a drop-in solution for maintaining your filter’s reliability.
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Corrosion-Resistant Construction: Fabricated from 3/4-inch stainless steel, the Pentair 172855 strainer is engineered for maximum durability and resistance to chemical and environmental degradation in pool environments.
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Protects Air Valve Tube: Acts as a defense barrier against debris intrusion, helping to preserve the integrity of the air valve tube and prevent blockages that can disrupt filtration or cause system wear.
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Maintains Uninterrupted Air Flow: Ensures the air relief vent remains clear of obstructions, facilitating proper pressure release and maintaining balanced operation across the filtration system.
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OEM-Designed Fit: Precision-built for use with Pentair Nautilus Plus and FNS series filters, this strainer installs directly without modification, streamlining replacement and ongoing maintenance.
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Critical for System Longevity: Prevents small debris from entering sensitive air flow channels, supporting sustained performance and reducing maintenance frequency over time.
- (1) Pentair 172855 Air Vent Strainer
- Pentair Nautilus Plus DE Filters
- Pentair FNS DE Filters

