Unicel FG-1236 Replacement DE Filter Grid | 18-3/8" | Pentair Purex SM/SMBW 2036 & 4036 C9405 If your IntelliChem system is

If your IntelliChem system is requiring increasingly frequent calibration adjustments or displaying erratic pH readings that don't respond to calibration

(4) #14 x 1 Inch Bracket Mounting Screws

Replacing the full set at once returns the valve to reliable

Does not require barrier

When this gasket wears or tears

Unicel FG-1236 Replacement DE Filter Grid | 18-3/8" | Pentair Purex SM/SMBW 2036 & 4036 C9405 If your IntelliChem system isThe Unicel FG 1236 is a single replacement DE filter grid engineered for Pentair Purex SM and SMBW series filter systems with 36 square feet total filtration capacity. Featuring a precision engineered collar with single notch and black adapter covering for a secure manifold fit, this grid is built to withstand system pressure while delivering reliable debris capture and extended service life. IMPORTANT: CHECK BEFORE YOU BUY This product is a single