American Standard Aqua Seal unit for sink, lavatory, and bath. Constructed of durable brass. Fits American Standard Aqua Seal units for sink, lavatory and bath. Includes faucet seat; locknut not included. ID length 2, broach K. Complies with the reduction of lead in drinking water act. Warning: This product can expose you to chemicals including Lead which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov. - Lead