Aqua Pro supplies everything you need for effective fresh water management. Universal water pumps, hoses and other fresh water system accessories. Every Aqua Pro product is designed to deliver clean fresh water with ease. All our products are lead free and safe for drinking water use.• Compatibility: RV Fresh Water Inlet Housing Part Number 21851• Pressure Range (PSI): 45 To 150 Pounds Per Square Inch• End Size1: 3/4 Inch• End Type1: Male Threads• End Size2: 3/4 Inch• End Type2: Female Threads• Color: Yellow• Material: Environment-Friendly Copper• Complies With CA/VT Regulations: Yes• With Built-In Check Valve: No• With Gauge: No• With Cap: No• Quantity: Single Grip Ring Assists With Installation & Removal: No Additional Tools Required Installs Between The Water Source & Your Water Hose | Aqua Pro Fresh Water Pressure Regulator, Fits All Standard Garden Hose And Hose B