Product specifications: The filter is M18 external thread, the faucet filter is suitable for faucet with 18mm internal thread. -item"> Package contains: M18x 2 plug-in faucet filter. Installation is quick and easy, no tools required. It's very simple, just remove the faucet accessory directly by hand. Anti-rust: plastic material, with ABS filter inside, non-toxic, wear-resistant, rust-proof and reliable, ensuring service life, quality and stability. Application: The filter faucet can be installed on the faucet of the bathroom or kitchen (it is recommended to install it only on the high pressure tap). No splashing: the honeycomb structure Bee of the faucet aerator makes the flowing water smooth and splash-free. Delicate bubbles, perfect champagne bubbles. 2 Pcs Faucet Aerator Water Saving Filter M18, Faucet Aerator, Faucet Aerator Accessories 18mm Universal Nozzle, for Bathroom and Kitchen Sink Faucet (Plastic)