Darlly Hot Tub Filter SC718 for Vita Spas 500 & 700 SeriesThis Filter Fits American Whirlpool Maax Spas US Spas Vita Spas 500 Trio Vita Spas 500 Joli Vita Spas 500 Monarque Vita Spas 500 Prestige Vita Spas 500 Grand Vita Spas 500 Salon Vita Spas 500 Envie Vita Spas 700 Vivre Vita Spas 700 Cabaret Vita Spas 700 Riviera Vita Spas 700 Rendezvous Vita Spas 700 Mystique Wellis Spas Darlly 50353 Pleatco PMAX50P4 Unicel 5CH 35 Magnum MA36M Dimensions Top Handle Bottom 3. 8cm Coarse (SAE) Male Thread Length 20cm