52-203-1-015 TYCO Model Av-1-300 6 Inch Ductile Iron Flanged Sprinkler Check ValveThe Model AV 1 300 is a 6 inch ductile iron flanged sprinkler check valve designed to prevent reverse flow in fire protection sprinkler systems. Its robust ductile iron construction ensures durability and reliable performance under high pressure conditions, while the flanged design facilitates secure installation and maintenance. Specifications: Brand TYCO Manufacture Johnson Controls, Inc. Unit of Measurement EA (Each) TYPE Valves Condition New