the Apollo model RPLF 4A lead free reduced pressure principle backflow preventers consist of two independently acting, TriForce™ center stem guided check valves with a differential pressure relief valve located between the check valves. the unit is designed to give maximum protection against backflow of health or non-health hazard fluids by either back-pressure or back-siphonage. the durable domestic stainless steel units (2-1/2”-8”) and the FDA epoxy coated ductile iron units (10” and 12”) are easily maintained in the line without any special tools. the TriForce™ check valves operate with a spring assist in the flowing condition to provide excellent flow rates which are documented by an independent laboratory.

• domestic stainless steel body: 2-1/2" - 8"
• FDA epoxy coated ductile iron body: 10" & 12"
• easy maintenance - no special tools required
• snap-in check retainers: 2-1/2" - 6"
• bolted-in checks: 8" - 12"
• low pressure loss as documented by an independent laboratory
• center-stem guided triforce™ check valves
• approved for horizontal flow
• US Patents: 6,443,184; 7,025,085; 7,533,699; 8,240,333
• made in the USA - requires D option
• 5 year warranty