Quality: Specially designed for potable drinking water and refrigerator installations. The package includes enough accessories for all installation needs. A 1/4 inch RO tubing is included. Odorless and tasteless. Sturdy and easy to install. Effective Leakage Prevention: Includes a professional tube cutter and pushin quick connect fittings for easy DIY installation with no tools required. Fast and precise cutting creates smooth edges, effectively reducing leaks from uneven cuts. No Drilling Required and Wide Compatibility: Tap into the existing shutoff valve under the kitchen sink. The feed water adapter is suitable for connecting filtration or reverse osmosis systems (1/4 inch or 3/8 inch outlets), as well as drinking water filter faucets, refrigerators, ice makers, water dispensers, and more. Practical use scenarios: Connect an undersink filtration or RO system to the cold water supply using the included kit, compatible with 1/4 inch or 3/8 inch outlets. Provide water to a refrigerator ice maker or a water dispenser from the undersink shutoff valve. Feed a drinking water filter faucet or other undersink filtration devices with a reliable, tool installation.