Lawler’s patented Series 800 high-low master controller technology offers a unique solution when designing for high-capacity systems. This pre-piped, factory tested parallel system can meet your need for increased capacity or for a redundant system in applications where the domestic hot water system cannot be interrupted. Lawler’s Pre-Piped Double Parallel System is a part of Lawler’s Power of One™ pre-piped, pre-packaged, pre-tested systems, intended to give you one point of design and one point of accountability. Specifications: Series: 800 Valve: 804 Configuration: Parallel Installation Application: Master Controller Certification/s: ASSE 1017, CSA B125.3, Lead Free Connection Type: Sweat Inlet Connection Size: 2-1/2" Outlet Connection Size: 3" Min Flow: 8 GPM Min Flow with Recirculation: 1/2 GPM Rated Flow at 10 PSI: 144 GPM Rated Flow at 45 PSI: 300 GPM Temperature Range: 110°F – 140°F, 70°F – 100°F, 90°F – 120°F Part Number: 86613-00 Documents and guides: Technical Documents