Designed for single-use or in parallel offering multiple filter combinations, the SPECTRUM Twist-Lock range of cartridges deliver outstanding performance and flexibility. Suitable for a wide variety of applications from vending to potable water to RO, they are an ideal solution for point-of-need applications. The 5 micron rating of the SPECTRUM PTL sediment provides an effective barrier removing dirt, rust, silt and sand particles from in-coming water supplies. Typically used as the first line of defence in most RO systems, the long life and excellent properties of the SPECTRUM sediment Twist-Lock protect and extend the life of more sensitive and expensive secondary POU filtration. The cartridges together with the head, form a system which utilises a clever and simple 'twist and lock' design for installing and remove cartridges, requiring no tools to perform filter changeouts.