Pentair Grid Pack Assy 66 GPM | 59005900

Pentair Grid Pack Assy 66 GPM | 59005900

The Grid Pack Assy 66 GPM (part number 59005900) is a complete internal grid assembly used in compatible Pentair diatomaceous earth (D.E.) pool filters. Designed for systems rated at 66 gallons per minute, this pack includes the full set of grids, top manifold, and center support rod.

It’s built to distribute D.E. powder evenly across the surface of each grid, allowing the filter to trap fine debris and maintain clean water. This fully assembled unit is ideal for replacing worn or damaged internals and helps maintain consistent flow and pressure levels.

Features:

• Grid assembly rated for 66 GPM flow

• Includes manifold, support rod, and vertical grid set

• Preassembled and ready for installation

• Designed for use with D.E. filtration systems

• Restores filtration performance in compatible models

• Built to match original factory specifications

Commonly Fits:

• Pentair D.E. filter models designed for 66 GPM output

• Filters using vertical internal grid configurations (confirm with diagram or manual)

Notes:
This listing includes the internal grid pack only. Tank shell, clamp, and external hardware are not included. Check all internal seals and components before installing a new grid pack.

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.