Continue shopping “Pentair Purex SMBW 2036 4036 Filter Grid 18 in. 074923 – 8 Pack” has been added to your cart. Product Price Quantity Total × Pentair Purex SMBW 2036 4036 Filter Grid 18 in. 074923 - 8 Pack $149.99 Pentair Purex SMBW 2036 4036 Filter Grid 18 in. 074923 - 8 Pack quantity $149.99 Cart totals Subtotal $149.99 Total $149.99 Proceed to checkout — OR — Coupon: