Aquaterior Faucet replacement aerator for bathroom above counter sink faucet (Applicable Aquaterior faucet models: AQT0001, AQT0002, AQT0003, 81FH1002, AQT0004, AQT0005, 81FH1036, 81FH1039, 81FH1040, Prevents water from spraying out by restricting water stream coming out of the spout Saving water by increasing scouring force Can filter large particles to make water cleaner Comes with an aerator key to disassemble the aerator to clean regularly; Overall Dimension(Dia.xH): 7/8' x 9/16' (2.2 x 1.5 cm)