Lasco 1.8 GPM 55/64 In. Female Thread Aerator

Chrome plated brass. California flow rate compliant product for lavatory faucets, 1.2 GPM (gallons per minute) at 60 psi (pounds per square inch) and kitchen faucets, 1.8 GPM (gallons per minute) at 60 psi (pounds per square inch). 55/64", 27 female thread.