Pentair 071439 O-Ring Replacement SM and SMBW 4000 Series Pool or Spa DE Filter If you use your old

If you use your old shaft seal

Can you say super sized

The Rainbow R172288 in-line corrosion resistant check valve is very effective when used in conjunction with low pH chlorinators preventing back flow problems and damage

The extra large debris basket minimizes your maintenance time and allows you more time to enjoy your pool

Pentair 071439 O-Ring Replacement SM and SMBW 4000 Series Pool or Spa DE Filter If you use your oldThis 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