Product Specifications: Product Name: T33 post carbon filter Brand: Neutral Built Media: coconut shell activated carbon water purification: 6 tons (subject to local water quality) Caution: Before first use rinse-threaded interface: 1/4 "(12mm) mating connectors: K4044, K7544, such as two exceptionally threaded joint action: to improve the taste of water for the environment: water purifier and water purifier filter supplies a fifth-grade product packaging: a box of 50 water quality Requirements: Municipal Water Color: White Shell material: food grade PP shell material time: 4-6 months (depending on water quality and water availability) Product Features: coconut shell activated carbon, coconut shell is made of high strength material, for drinking water purification, dechlorination, algae, oxygen, catalytic carrier, has a bactericidal antibacterial function. remove various harmful toxic substances in water, can effectively improve the taste.