PG-1903 - Unicel 18" Small,Pacfab,Amprod,Hayward De Filter Grid

🧊 Unicel PG-1903 18" DE Filter Grid – Replacement for Pacfab, Amprod & Hayward Filters
Part #PG-1903 | 18" Small Grid | High-Performance DE Filter Replacement

The Unicel PG-1903 is an 18-inch small DE (diatomaceous earth) filter grid designed to fit and restore peak filtration to select Pacfab, Amprod, and Hayward DE pool filter systems. Crafted from durable, chemical-resistant materials, this grid ensures efficient water flow and superior debris capture for sparkling clean pool water.

✅ Product Features:

• 🔄 Universal Fit: Compatible replacement for select Pacfab (Pentair), Amprod, and Hayward DE filter systems using 18" small grids
• 🦠 Superior Filtration: Woven polypropylene fabric traps the finest particles for crystal clear pool water
• 💪 Durable Construction: Heavy-duty, chemical-resistant frame withstands repeated cleaning cycles
• 🛠️ Easy Installation: Direct drop-in replacement for original small grid – no modifications needed
• 📏 Grid Size: 18" (length) x 11" (width) – Small grid style; verify fitment for your filter model

🔧 Compatibility & Replaces:

• Fits Pacfab (Pentair) FNS, FNS Plus, and Nautilus DE filters (small grid positions)
• Fits Amprod and Hayward DE filters as specified by manufacturer
• Replaces original OEM small DE filter grids, including Pentair 59001600, Hayward DEX3600DE, and others – check your filter for specific fit

📋 Directions for Use:

1. Turn off the pool pump and relieve filter pressure
2. Open filter, remove old grid assembly
3. Replace damaged/worn small grid(s) with Unicel PG-1903
4. Reassemble and recharge with DE as per filter manufacturer’s instructions
5. Restore circulation and check for leaks

🌀 Maintenance Tips:

• Rinse grids regularly to extend lifespan
• Replace worn or damaged grids annually for optimal filtration

Premier Pool & Spa carries a full range of Unicel filter grids, cartridges, and DE filter accessories. Need help with sizing? Contact our team for expert support!