Filter delivers safe and clear purified water to the highest sense of happiness. Enjoy your unique . [Replacement Models] Length: 7 5/8inch; Outside Diameter: 6inch; Top: Circular Handle; Bottom: 1 1/2inch thread; Filtration Area: 45 sq. ft. PLF6CH-940 Hot Tub compatible PWW50P3(Not PWW50P4), 6CH-940, -0359, 817-0050, 25252, 378902, 03FIL1400, HTF0245RT. NOTE: This is a compatible spare part and manufacturers' names and part numbers have been used for reference purposes only. [Long Service Life] Unique Trilobal Filtration Fabric Structure easier to capture volume of contiminants. It is also easy to wash/clean to recondition filter. This filter lasts for 1-2 years when proper maintenance is performed. Colour: white + blue Material: plastic Package Contents: 2 x Spa Filter Only above package content, other are not included. Note: Light and different displays may cause color of item in a little different from real . The measurement allowed is +/- 1-3cm.