Water/Food Use: High-quality, durable brass with a chrome-plated housing and a 90-degree (off-on) lever to connect to any kitchen sink with a removable aerator. Faucet Splitter Size: M22 (22 mm) female thread diverter faucet; RO hose outlet diameter: 3/8" and 5/16" OD; Compatible with most standard-size faucets or any fixture connected to 3/8" and 5/16" plastic hoses. Easy Installation: Provides a quick and convenient fit, saving time and money. Simply remove the aerator from your faucet (unscrew it) and insert this diverter valve in its place. Next, insert a separate RO hose to your water filter on the countertop. Practical design: With the tap's diverter valve, you can easily redirect water from your sink to your water filter on the countertop. You can also wash your hands and use the sink as usual. The diverter can be permanently installed or removed in seconds. No drips, no leaks, solid, high-quality construction. TIPS: Check if your aerator is removable, then remove the aerator and measure. If the tap has a 22mm male thread, it will work. If it has a 24mm female thread, you will need to purchase an additional M22 to M24 adapter. If your tap is a standard type with no thread and a diameter between 14mm and 22mm, you will need to purchase an additional universal adapter.