FS524 Features: -Filter saver basket liner. -Stretch filter saver basket liner over your existing basket and the fine mesh will collect pollen, insects, and debris. -Allows better water flow and longer filter cycles. -Saves time; no more clogged skimmer baskets. -5 Socks per pack. -Protects and extends the life of your filter by collecting debris before it damages your system. Product Type: -Backrests & Headrests. Dimensions: Overall Product Weight: -3.9 lbs.