Stop inconsistent water pressure damage to your RV water hose, pump or internal lines, with this regulator. Reducing water pressure to a safe, consistent 40-50 pounds of operational pressure, you protect your equipment, and prevent failures as well as prolong your equipment life span. 3/4" ABS Plastic regulator Stop damage to your RV water equipment from inconsistent water pressure in campgrounds Reduces water pressure to a safe, consistent 40-50 pounds of operational pressure Protects equipment Prevents hose failure Helps prolong equipment life Patented For outdoor use only