It is rustproof, BPA-free, and lead-free. 𝐋𝐨𝐧𝐠𝐞𝐫 𝐅𝐢𝐥𝐭𝐞𝐫 𝐋𝐢𝐟𝐞, 𝐋𝐞𝐬𝐬 𝐖𝐚𝐬𝐭𝐞：Save money and reduce waste with the Waterdrop Countertop Faucet Filtration System. The CFF-05 filter lasts up to 8 months, and the CFF-06 lasts up to 12 months, with zero electricity needed.