Continue shopping “Pentair FNS Plus Filter Small Grid 18 inch 59001700 PG-1903” has been added to your cart. Product Price Quantity Total × ORIGINAL OEM Hayward Heater HI-Limit 135F OEM HAXHLI1930 $39.01 ORIGINAL OEM Hayward Heater HI-Limit 135F OEM HAXHLI1930 quantity $39.01 × Pentair FNS Plus Filter Small Grid 18 inch 59001700 PG-1903 $41.01 Pentair FNS Plus Filter Small Grid 18 inch 59001700 PG-1903 quantity $41.01 Cart totals Subtotal $80.02 Shipping Shipping costs will be calculated once you have provided your address. Total $80.02 Proceed to checkout — OR — Calculate shipping Country / region: Select a country / region… United States (US) State / County: City: Postcode / ZIP: Update