[Dimensions]: Universal water filter replacement fits any standard 10 inch RO and Whole House systems. [ Quality Filtration]: wound water filter have a deep bed filtration function,which It presents honeycomb structure of being dense inside and sparse outside. Wound sediment filter can reduce 99.99% sand, scale, rust, sediment, particles. [High Capacity]: The filter can filter 20000 - 30000 gallons depending on water quality. Suggest to replace it every 3- 6 months for the average household for optimal performance depending on the use. [Multiple Advantages]:It has the advantages of high filtration accuracy, large flow rate, small pressure difference, high compressive strength, large pollution tolerance, non- and tasteless, and no secondary pollution. [Excellent performance]: wound filter elements adopt POLYPROPYLENE Microfibers to be tightly wound on the porous framework according to a specific process, The honeycomb structure with sparse outside and dense inside,it has a good deep filtration effect, and can effectively suspended solids, rust, particles and other impurities in the liquid Type: Water Filter Parts Model Number: Cotton Filter colour:White Material:Polypropylene yarn, plastic skeleton size:Approximately length: 254m, inner diameter: 30mm outer diameter: 59mm Package Contents: 12 pack x 5 Micrometre string wound water filter Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.