Why do you choose Waterdrop? Established in 2015, Waterdrop has grown to become the most popular and diversified brand in the replacement filter industry. We have a unique global footprint and sell our products in more than 20 countries worldwide. We are dedicated to delivering a sustainable, industry-leading water purification systems by enhancing water quality and contributing to a healthier future. Please note that this Undersink Water Filtration System cannot reduce TDS. If you need to reduce TDS, the Waterdrop RO System will be an excellent choice. For details, please search WD-G3. Whats in the box? ·Waterdrop Undersink Water Filtration System×1 ·SS304 faucet set×1 ·1/4 PE tubing×1 ·3/81/2 Convertor set×1 ·Feed water adapter×1 ·Self-tapping screws×2 ·Teflon tape×1 ·Drilling sticker×1 ·SS