The Sievert 8716 Neck and Valve Assembly is a precision gas torch valve designed for direct connection to Primus 2000 cylinders, providing accurate flame control for professional heating and brazing applications. This neck tube valve features an integrated back pressure valve that significantly reduces the risk of dangerous flare-ups during operation, making it a safer choice for demanding trade environments. The assembly accepts burners with an M8 x 0.75 thread specification, ensuring compatibi
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