Perhaps most well-known is our Magnehelic gage, which has been an industry standard since its introduction in 1953.
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DWYER:1823-5
SKU: DWYER:1823-5
DWYER:LPG4-D8122N
SKU: DWYER:LPG4-D8122N
DWYER:16A2110
SKU: DWYER:16A2110
DWYER:PFG2-02
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DWYER:4300
SKU: DWYER:4300