Pentair SM/SMBW Filter Element (DE Grid) 4036 18in, 074923
No. 8 Image Shown Above 07-4923 Filter Element 4036 Sq. Ft. 18 In. Used On Purex (Pentair) Filters - Fits SMBW 4000 This is a Curved DE Filter Grid to Fit Purex Sm/SMBW Filters. These Grids Install Into A Manifold Placed At The Bottom of The Tank and Have Thicker Plastic Inserts or Sleeves, Than Other Curved DE Grids. This Grid Fits The 4036 Model (36 Sq Ft), and 8 of These Grids Are Used In The Purex Filter. These Grids Do Not Fit Any Other Make or Model of Filter.