The Apollo® Model FFB Combination Backflow Preventer and Fast Fill Pressure Regulator is designed to protect residential and commercial potable water supply lines from back-siphonage or backpressure on Hot Water Heating Boilers. An intermediate atmospheric vent ensures positive protection from backflow conditions. The pressure regulator provides boiler make up water at the desired pressure and includes a purge/quick fill feature.

• All Brass/Bronze Construction
• Designed for continuous pressure
• Independently acting check valves
• In-line replaceable cartridge
• Purge lever / high capacity fast fill feature
• No steel cage screws
• Factory pre-set at 15 psig - Adjustable 10 to 25 psig
• Untapped vent port option (-C)