The Connection Is a Loop Used to Disconnect the Pipe When Necessary for Rescue Purposes. ※ Specifications: 20mm 25mm 32mm 40mm 50mm 63mm 75mm 90mm 110mm. ※ Old Style: 20mm ~ 110mm New Style: 20mm ~ 50mm (the Picture of the Old Model 20mm ~ 50mm Is Not Shown in the Specification Drawing).
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