Filter Savers Skimmer Socks
MFS520 Filter Savers Display 20 x 5 Pack
MFS540 Filter Savers 40 x 5 Pack
Filter Savers are sold in a pack of 5. A case of 2 x MFS520 = 40 Packs of 5. Extends filter cycles by reducing backwash frequency. Also reduces pump basket cleaning and simplifies skimmer maintenance.