Package includes: 5pcs faucet filter cache aerator in 4 different sizes, including 1pcs M16.5, 1pcs M18.5, 2pcs M21.5, 1pcs M24, . 5pcs cache aerator wrench tools for removing different sizes of cache tap aerator. Practical advantage: Faucet aerator tool set to replace or clean the blocked aerators, effectively fix the low flow faucet and gives you smooth flow again. Easy to install: Faucet filter replacement comes with wrench tools allow you to complete removal and installation in minutes. No need to have a plumber. Works well: 5 pieces standard size faucet aerators, great replacement faucet aerators for bathroom or kitchen, ensure the smooth flow, different sizes of faucet aerators with different water flow rates. Excellent material: The faucet a.