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Ashcroft Pressure Switch, 30" WC, 1/4" NPT(F); Single Set Point, Adjustable Dead Band from Cole-Parmer United Kingdom
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Amazon.com: Ashcroft B Series Type 400 Pressure and Differential Pressure Switch, General Purpose, Buna-N Actuator Seal, 1/2" NPT Male and 1/4" NPT Female Combination, 30" Hg Vac Pressure : Industrial & Scientific
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Ashcroft B Series Explosion Proof Pressure Switch, 15 psi, 1/4" NPT(F); Two Set Points from Cole-Parmer United Kingdom
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