SuperSpray Saver Series, 1.8 GPM Max flow rate Spray & Stream Aerator, All Brass Swivel & Dual Thread Connector, Plastic Spray Body, Installs Easily On Most Faucets. 15/16" x 27 Male & 55/64" x 27 Female Threads, Meets California Title 20 Standard Of 1.8 GPM Max For Kitchen Faucets, Lead Free - Complies With Federal Safe Drinking Water Standards.