Darlly C6430 Hot Tub Filters PWK30 Spa 31489 Hot Spring - Pack of 2 - MULTIPACK
These are excellent quality filters boasting a massive 124 pleat count per filter, compared with Pleatco Filters which only have 114. Pleat count. Hot Springs Part. Hotspot Square. Hotspot Round. 1 15/16" (4.9cm) hole.