Package and material : 4 x tap accelerator filter made of PVA fleece + zeolite + maifan stone + calcium sulphite + activated carbon, 5 layers of water filtration, safe to use. (2 Blue, 1 Green, 1 Pink) Easy to Install Our clean cleaning filter with a mounting ring, easy to install and use, The mounting hole is flexible and elastic, and it is firmly fixed without falling off, suitable for installation on a circular outlet with a diameter of 16-23mm, water will not fall off or leak. Features : This faucet head for kitchen water can prevent water from splitting, the water outlet is densely distributed, which distributes the power of the water flow, improve the cleaning efficiency make water does not splash, decreased to water consumption and energy costs. Widely Applicable : Compact and practical, it can be installed on most circular outlet faucets, for example round basin taps, single hole basin mixers, shower faucets, bathtubs, kitchen faucets, etc. Note : When the tap starts working,