[Affordable Filter Replacement]Our water filter replacement filter is perfect for easily replacing brand BB9-2 black purification elements and PF-2 fluoride filters in gravity water filtration . Compatible with Travel, Big, Royal, , Crown Series, Propur Traveler, , King, Big Series, Gravity filter . ['t worry about water quality]The water filter replacement effect is other water filters on the market. The filtered water is purified very clear and has a neutral taste with practically no odor. Effectively reduces chlorine, fluoride, heavy metals, taste and odor, sediment, particles and other pollutants by up to 99%. [FOOD GRADE MATERIALS]Our products are strictly inspected, The BB9-2 black filter is made of high quality material, and the PF-2 white filter is made of natural coconut activated carbon to remove fluoride. Pass water over granulated activated charcoal for superior taste improving properties. [Economic and Practical]According to the size and budget of each family, we recommend that you replace the PF-2 fluoride water filter every 1,000 gallons and the black water filter every 6000 gallons under normal conditions. It uses more of the safest water and costs less. [CHANGE YOUR LIFE]Especially in summer, you can safely drink tap water, even untreated raw water from remote lakes and streams, make coffee and cook. Great , travel, outdoor activities, and emergencies such as water shortages, the Big water filter system replacement can provide you with healthy, clean, high-quality water. Colour:black Material:plastic Size:about 21 x 5.6 x 3cm Package Contents: 2 X filter elements Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.