Pentair 59002300z Small Grid Assembly 48 Sq Ft De Filter

Product Description

The PENTAIR 59002300z is a 24-inch small partial grid assembly designed for diatomaceous earth pool and spa filtration systems. This component serves as the internal filtration grid structure that captures debris and allows filtered water to pass through cleanly. It measures 24 inches in length and covers 48 square feet of filtration area. The grid assembly is constructed from chemical-resistant materials built to withstand continuous exposure to pool water, DE powder, and sanitizing chemicals. Pool service professionals and licensed technicians install this part as a direct OEM-style replacement when grids become torn, warped, or cracked during routine filter teardowns.

This grid assembly fits Pentair FNS, FNS Plus, Nautilus, and Nautilus Plus 48 square foot pool and spa DE filters. It is suited for both residential and commercial pool applications where DE filtration is the system of choice. The part is typically serviced during seasonal startups, post-backwash inspections, or any time filter pressure differential indicates reduced flow caused by damaged internal grids. Pool service professionals commonly handle this replacement as part of a full grid set inspection or single-grid swap.

Key Features

• 24-inch partial grid assembly sized for 48 square foot DE filter housings
• Chemical-resistant construction for long-term exposure to chlorinated and saline pool water
• Direct replacement for worn, cracked, or torn grids in compatible Pentair DE filters
• Supports efficient debris capture and maintains proper water flow through the filter
• OEM-style fitment minimizes installation time during scheduled filter service

Compatibility

Fits Pentair FNS, FNS Plus, Nautilus, and Nautilus Plus 48 square foot pool and spa DE filters.

Installation Notes

Installation should be performed by a qualified pool service professional. Before disassembling the filter, shut off the circulation pump and relieve all pressure from the filter tank by opening the air relief valve. Inspect the manifold, o-rings, and remaining grid assemblies for wear before reinstalling the tank. Follow all applicable local codes and the filter manufacturer service instructions when reassembling the system.

Technical Specifications

• Grid Length: 24 inches
• Filtration Area: 48 square feet
• Material: Chemical-resistant polymer
• Filter Type Compatibility: Diatomaceous Earth (DE)

Standard Information

• Brand: PENTAIR
• Manufacturer Part Number: 59002300z