The 2 PACK PUR PLUS Faucet Mount Replacement Water Filter RF9999 RF99992 is a set of two faucet filters designed specifically for use with PUR brand faucets. Made in the United States, these filters are compatible with model RF-9999 and are easy to install. By using these replacement filters, you can ensure clean and safe water from your faucet while also protecting the environment by reducing the need for single-use plastic bottles. Perfect for maintaining a healthy kitchen, these filters are a convenient and reliable choice for purifying your tap water.