Darlly SC701 Spa Filter Cartridge – Replacement for 50403 / 5CH-402 / PJW40SC-F2M Keep your hot tub water crystal clear with the Darlly SC701 Spa Filter, a premium-quality replacement cartridge designed to deliver outstanding filtration performance. Manufactured using high-quality filtration media, the SC701 effectively captures dirt, debris, oils, and other contaminants, helping to maintain clean, healthy spa water while protecting your spa's circulation system. Built to meet or exceed OEM specifications, the Darlly SC701 is a direct replacement for several leading filter brands, making it a reliable and cost-effective choice for spa owners. Compatible Replacement Filter Codes The Darlly SC701 replaces the following filter cartridges: Darlly: 50403 Unicel: 5CH-402 Pleatco: PJW40SC-F2M (also commonly listed as PJW40-SC) Filbur: FC-2811 Magnum: DS40 Sundance Spas: 6540-723 Compatible Hot Tub & Spa Brands The Darlly SC701 is compatible with selected models from: Sundance Spas (including many 680 Series models such as Redondo and Hermosa/Hermasco, depending on model year) Jacuzzi® (selected compatible models using Sundance 6540-723 style filters) Delo Sol Spas Vita Spas Tuff Spas (including TT250, TT450 and TT650 models) Armstark Spas Always check your existing filter dimensions and part number before ordering, as some spa models use different filters depending on the year of manufacture. Specifications Filter Area: 40 sq. ft. Length: 250 mm (10") Diameter: 130 mm (5") Top: Handle Bottom: 50 mm Fine Male Thread (MPT) Replace your spa filter regularly to maintain optimal water quality and ensure your hot tub performs at its best.