Unicel FG-1003 18'',PACFAB,AMPROD,HAYW,STARITE

The Unicel FG-1003 is a premium replacement grid for Diatomaceous Earth (DE) pool and spa filters, engineered to trap microscopic debris and deliver crystal-clear water. Measuring 18" in length, this main grid offers universal compatibility with leading DE filter systems from Pentair/PacFab, American Products, Hayward, and Sta-Rite.

• ✅ Universal Compatibility: Fits Pentair FNS, FNS Plus, Nautilus, SMBW 4000, Hayward, and Sta-Rite 36 sq. ft. DE filters
• ✅ Durable Construction: Heavy-duty polypropylene fabric delivers long-lasting filtration and performance
• ✅ Easy Drop-In Replacement: Designed for hassle-free installation and secure fit in filter manifolds
• ✅ Main Grid Size: 18" length, standard for many 36 sq. ft. DE filter systems (verify your filter’s grid count and dimensions)
• ✅ OEM-Quality Standards: Manufactured to meet or exceed original specs for reliable operation

• Length: 18 inches
• Width: ~11 inches
• Material: Polypropylene fabric
• Replaces: PacFab 17-4240, Hayward DEX4800, Sta-Rite 23900-0038, and other compatible main grids*

🔧 Directions for Use:
1. Turn off pump and relieve pressure from filter system.
2. Open filter tank and remove existing grid(s).
3. Rinse new grid with clean water and install into the manifold.
4. Reassemble filter tank and add fresh DE powder per manufacturer instructions.
5. Always follow your filter manufacturer’s recommendations for grid replacement and maintenance.

*Confirm grid size and compatibility with your filter’s manual. FG-1003 is typically used as the main (long) grid in 36 sq. ft. DE filter sets, which usually require 7 short and 1 long grid.

🏊 Ensure optimal filtration and water clarity with Unicel's trusted replacement grids. For sizing help or installation tips, connect with Premier Pool & Spa’s expert support team!