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JTM Brass Drop Arm Adaptor 9/16" Drop 12" -: Brass Drop Arm
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Enables the correct air gap to be achieved. Available to suit all float operated piston type valves. Designed to reduce the risk of back siphonage into the mains water supply by increasing the size of the air gap between the water level in the tank and the outlet of the valve when the valve is in the closed position.The drop arm should not be of a length that would allow the float to swing under the valve body.3/4″ – 5/161″ – 7/161.1/4″ – 9/16 1.1/2″ – 9/16Sold in a range of sizes.Manufactured from high quality material.Suitable for brass piston operated ball valves. JTM Brass Drop Arm Adaptor 9/16" Drop 12" -: Brass Drop Arm