Check out our List The critical factor in selecting a shower head is its flow rate: 2.5 gallons per minute or less for models certified by such programs as WaterSense. In addition, this helps consumers, the environment, and cost savings all at once. These types of shower heads are prudent, sustainable choices and a balanced performance-conserving option. 1. Environmental BenefitsThe shower head, with a flow rate of 2.5 GPM or less, will help conserve water, an important commodity. The EPA estimates that a standard showerhead can use as many as 20 gallons of water per 10-minute shower, while WaterSense-certified models use only about 15 gallons. This can save…