The Swimables Air Vent Strainer SW-26-855 is a direct replacement for Pentair part number 172855 and is designed for use with Pentair FNS, Nautilus, and Nautilus Plus D.E. filters. This component plays a key role in allowing trapped air to escape from the filter tank while preventing debris from clogging the air relief system. Made from durable, corrosion-resistant materials, the SW-26-855 ensures long-lasting performance and supports consistent filter operation. Its precise fit and sturdy construction make it an essential part of maintaining effective water circulation and pressure balance in your poolÕs filtration system.

• Direct Replacement: Matches Pentair part number 172855 for FNS, Nautilus, and Nautilus Plus D.E. filters.

• Efficient Air Relief: Allows trapped air to escape while blocking debris from entering the air vent system.

• Durable & Corrosion-Resistant: Built from high-quality materials to withstand harsh pool environments.

• Supports Filter Performance: Maintains proper circulation and pressure balance for efficient filtration.

• Precision Fit: Ensures easy installation and reliable integration with compatible Pentair filter systems.

• (1) Stainless Steel Air Vent Strainer Cap

• Pentair FNS DE Filters
• Pentair Nautilus DE Filters
• Pentair Nautilus Plus DE Filters