Yes, virtually all new residential sink faucets manufactured and sold today come equipped with built-in flow restrictors (aerators) to comply with modern federal water-efficiency standards and building codes. These restrictors limit maximum flow rates—typically between 1.5 and 2.2 gallons per minute (GPM)—to conserve water. However, if your home has naturally low water pressure, these restrictors can sometimes make the stream feel inadequate. Verification: Unscrew the aerator tip from the spout and inspect inside for a plastic or mesh flow-limiting disk.
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