Perhaps most well-known is our Magnehelic gage, which has been an industry standard since its introduction in 1953.
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DWYER:RSM-6-B
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DWYER:RSV1D
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DWYER:RSV1L
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DWYER:S2-41
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DWYER:SBLT2-10M-18M
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DWYER:SBLT2-5-40
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