The Water Purifier Heron Carbon Cartridge Package is an essential accessory for your RO filter. With this package, you will receive 2 Pieces Elbow for RO Filter, making it easy to install and use. The carbon and sediment filter cartridges are highly effective in removing impurities and contaminants from your drinking water, ensuring that you get clean and safe water to drink. This product is compatible with most RO filters, making it a must-have for maintaining the quality of your drinking water. With this package, you can rest assured that your drinking water is of the highest quality possible.