Pentair Clean & Clear Plus 520 Tank Lid Assembly | 178582

Pentair Clean & Clear Plus 520 Tank Lid Assembly | 178582

Replacement lid for Pentair Clean & Clear Plus 520 filter tank. Ensures proper seal and pressure integrity. SKU 178582.

Features

• OEM replacement lid built to restore full sealing performance
• Compatible with 520 sq ft Clean & Clear Plus and Quad D.E. 100 filters
• Reinforced polypropylene construction resists pool chemicals
• Almond-tan finish matches original equipment
• Dimensional match, no plumbing changes required
• Approx. weight ~17.4 lbs; ships in 21.8 × 20.8 × 25.5 in box

Description

The Pentair 178582 Tank Lid Assembly is engineered as a durable replacement for the top cover of your 520 sq ft Clean & Clear Plus cartridge filter or compatible Quad D.E. 100 unit. Designed for long-term exposure to pool environments, its reinforced polypropylene structure resists cracking, UV damage, and chemical degradation. The precision molding ensures dimensional integrity — restoring the proper seal and maintaining tank pressure without requiring any modifications. This lid maintains performance consistency for your filtration system by preserving water flow and preventing leaks.

Pro Tip

For best results, replace the air relief valve and pressure gauge if yours are worn; they often fail before the lid. Pair with Pentair 192320 O-Ring (bulkhead seal) for a tight fit.

Related Parts

• Pentair O-Ring, Bulkhead Seal | 192320
• Pentair Air Relief Valve Assembly
• Pentair Clean & Clear Plus 520 Cartridge Filter

Installation Tips

Always depressurize and shut off pump before removing or installing the lid. Ensure the O-ring/gasket is clean, lubricated with silicone, and properly seated before tightening. Do not overtighten; crush the seal.

We want you to have quick and easy access to warranty information for all the brands we carry. Please click on the links below to view each manufacturer’s warranty page:

• Pentair Warranty
  
• A&A (Pentair In-Floor) Warranty
  
• Fluidra Warranty (Zodiac / Jandy / Polaris / Caretaker)
  
• Paramount Warranty
  
• BlueSquare Warranty
  
• Hayward Warranty
  
• All Other Manufacturer Warranties
  

Note: Warranty coverage, registration, and service terms are provided directly by the manufacturer. Please review the details carefully to ensure proper understanding of coverage and claim procedures.