[Affordable Filter Replacement] Our water filter replacement is perfect for easily replacing the brand BB9-2 black purification filters and PF-2 fluoride filters in gravity water filtration. Compatible with Travel, Big, Royal, Crown Series, Propur, King, Big Series, Gravity filters. [Don't Worry About Water Quality] The effect of the water filter replacement is better than other water filters on the market. The filtered water is very pure and has a neutral taste with virtually no odor. Effectively reduces chlorine, fluoride, heavy metals, taste and odor, sediment, particles, and other contaminants by up to 99%. [FOOD GRADE MATERIAL] Our products are strictly inspected. The black BB9-2 filter is made of high-quality material, and the white PF-2 filter is made of natural coconut activated carbon to remove fluoride. Let water pass over granular activated carbon for superior taste-enhancing properties. [Economical and Practical] Depending on the size and budget of each family, we recommend replacing the PF-2 fluoride water filter every 1,000 gallons and the black water filter every 6,000 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. Perfect for camping, travel, outdoor activities, and emergencies such as water shortages, the Big water filter system replacement can provide you with healthy, clean, high-quality water. Color: black Material: plastic Size: about 21 x 5.6 x 3 cm 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 to differ slightly from the real thing. The allowable measurement error is +/- 1-3 cm.