Pentair 071439 O-Ring Replacement SM and SMBW 4000 Series Pool or Spa DE Filter Features: The Poolguard POOL ALARM

Features: The Poolguard POOL ALARM

Tube Failure Detection System (TFD)

Audible low battery indicator at the poolside alarm is also indicated by the in house remote receiver

This genuine replacement cartridge is the number one choice in cartridge filtration to maintain your pool water cleanliness

Pentair 071439 O-Ring Replacement SM and SMBW 4000 Series Pool or Spa DE Filter Features: The Poolguard POOL ALARMThis O Ring is designed to use with Pentair SM & SMBW 4000 series pool and spa D. E. filters. Features: Pentair Purex SMBW 4000 Filter Lid O Ring 071439 Lid O Ring SMBW 4000 Filter Lid O Ring Purex SMBW 4000 Filter Lid O Ring