With over 155 years of proven experience, an extensive list of designs and options make the Marsh Instruments line of Process Gauges the intelligent and practical choice in process instrumentation. All case styles feature SAFECASE solid front construction.

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Variations: P18005, P18005L1, P18005L2, P18005L3, P18005L4, P18005W1, P18005W2, P18005W3, P18005W4, P18005P, P18005PL1, P18005PL2, P18005PL3, P18005PL4, P18005PW1, P18005PW2, P18005PW3, P18005PW4, P18005PI, P18005PIL1, P18005PIL2, P18005PIL3, P18005PIL4, P18005PIW1, P18005PIW2, P18005PIW3, P18005PIW4, P18010, P18010L1, P18010L2, P18010L3, P18010L4, P18010W1, P18010W2, P18010W3, P18010W4, P18010P, P18010PL1, P18010PL2, P18010PL3, P18010PL4, P18010PW1, P18010PW2, P18010PW3, P18010PW4, P18010PI, P18010PIL1, P18010PIL2, P18010PIL3, P18010PIL4, P18010PIW1, P18010PIW2, P18010PIW3, P18010PIW4, P18012, P18012L1, P18012L2, P18012L3, P18012L4, P18012W1, P18012W2, P18012W3, P18012W4, P18012P, P18012PL1, P18012PL2, P18012PL3, P18012PL4, P18012PW1, P18012PW2, P18012PW3, P18012PW4, P18012PI, P18012PIL1, P18012PIL2, P18012PIL3, P18012PIL4, P18012PIW1, P18012PIW2, P18012PIW3, P18012PIW4, P18014, P18014L1, P18014L2, P18014L3, P18014L4, P18014W1, P18014W2, P18014W3, P18014W4, P18014P, P18014PL1, P18014PL2, P18014PL3, P18014PL4, P18014PW1, P18014PW2, P18014PW3, P18014PW4, P18014PI, P18014PIL1, P18014PIL2, P18014PIL3, P18014PIL4, P18014PIW1, P18014PIW2, P18014PIW3, P18014PIW4, P18016, P18016L1, P18016L2, P18016L3, P18016L4, P18016W1, P18016W2, P18016W3, P18016W4, P18016P, P18016PL1, P18016PL2, P18016PL3, P18016PL4, P18016PW1, P18016PW2, P18016PW3, P18016PW4, P18016PI, P18016PIL1, P18016PIL2, P18016PIL3, P18016PIL4, P18016PIW1, P18016PIW2, P18016PIW3, P18016PIW4, P18020, P18020L1, P18020L2, P18020L3, P18020L4, P18020W1, P18020W2, P18020W3, P18020W4, P18020P, P18020PL1, P18020PL2, P18020PL3, P18020PL4, P18020PW1, P18020PW2, P18020PW3, P18020PW4, P18020PI, P18020PIL1, P18020PIL2, P18020PIL3, P18020PIL4, P18020PIW1, P18020PIW2, P18020PIW3, P18020PIW4, P18024, P18024L1, P18024L2, P18024L3, P18024L4, P18024W1, P18024W2, P18024W3, P18024W4, P18024P, P18024PL1, P18024PL2, P18024PL3, P18024PL4, P18024PW1, P18024PW2, P18024PW3, P18024PW4, P18024PI, P18024PIL1, P18024PIL2, P18024PIL3, P18024PIL4, P18024PIW1, P18024PIW2, P18024PIW3, P18024PIW4, P18040, P18040L1, P18040L2, P18040L3, P18040L4, P18040W1, P18040W2, P18040W3, P18040W4, P18040P, P18040PL1, P18040PL2, P18040PL3, P18040PL4, P18040PW1, P18040PW2, P18040PW3, P18040PW4, P18040PI, P18040PIL1, P18040PIL2, P18040PIL3, P18040PIL4, P18040PIW1, P18040PIW2, P18040PIW3, P18040PIW4, P18042, P18042L1, P18042L2, P18042L3, P18042L4, P18042W1, P18042W2, P18042W3, P18042W4, P18042P, P18042PL1, P18042PL2, P18042PL3, P18042PL4, P18042PW1, P18042PW2, P18042PW3, P18042PW4, P18042PI, P18042PIL1, P18042PIL2, P18042PIL3, P18042PIL4, P18042PIW1, P18042PIW2, P18042PIW3, P18042PIW4, P18046, P18046L1, P18046L2, P18046L3, P18046L4, P18046W1, P18046W2, P18046W3, P18046W4, P18046P, P18046PL1, P18046PL2, P18046PL3, P18046PL4, P18046PW1, P18046PW2, P18046PW3, P18046PW4, P18046PI, P18046PIL1, P18046PIL2, P18046PIL3, P18046PIL4, P18046PIW1, P18046PIW2, P18046PIW3, P18046PIW4, P18048, P18048L1, P18048L2, P18048L3, P18048L4, P18048W1, P18048W2, P18048W3, P18048W4, P18048P, P18048PL1, P18048PL2, P18048PL3, P18048PL4, P18048PW1, P18048PW2, P18048PW3, P18048PW4, P18048PI, P18048PIL1, P18048PIL2, P18048PIL3, P18048PIL4, P18048PIW1, P18048PIW2, P18048PIW3, P18048PIW4, P18052, P18052L1, P18052L2, P18052L3, P18052L4, P18052W1, P18052W2, P18052W3, P18052W4, P18052P, P18052PL1, P18052PL2, P18052PL3, P18052PL4, P18052PW1, P18052PW2, P18052PW3, P18052PW4, P18052PI, P18052PIL1, P18052PIL2, P18052PIL3, P18052PIL4, P18052PIW1, P18052PIW2, P18052PIW3, P18052PIW4, P18054, P18054L1, P18054L2, P18054L3, P18054L4, P18054W1, P18054W2, P18054W3, P18054W4, P18054P, P18054PL1, P18054PL2, P18054PL3, P18054PL4, P18054PW1, P18054PW2, P18054PW3, P18054PW4, P18054PI, P18054PIL1, P18054PIL2, P18054PIL3, P18054PIL4, P18054PIW1, P18054PIW2, P18054PIW3, P18054PIW4, P18058, P18058L1, P18058L2, P18058L3, P18058L4, P18058W1, P18058W2, P18058W3, P18058W4, P18058P, P18058PL1, P18058PL2, P18058PL3, P18058PL4, P18058PW1, P18058PW2, P18058PW3, P18058PW4, P18058PI, P18058PIL1, P18058PIL2, P18058PIL3, P18058PIL4, P18058PIW1, P18058PIW2, P18058PIW3, P18058PIW4, P18060, P18060L1, P18060L2, P18060L3, P18060L4, P18060W1, P18060W2, P18060W3, P18060W4, P18060P, P18060PL1, P18060PL2, P18060PL3, P18060PL4, P18060PW1, P18060PW2, P18060PW3, P18060PW4, P18060PI, P18060PIL1, P18060PIL2, P18060PIL3, P18060PIL4, P18060PIW1, P18060PIW2, P18060PIW3, P18060PIW4, P18064, P18064L1, P18064L2, P18064L3, P18064L4, P18064W1, P18064W2, P18064W3, P18064W4, P18064P, P18064PL1, P18064PL2, P18064PL3, P18064PL4, P18064PW1, P18064PW2, P18064PW3, P18064PW4, P18064PI, P18064PIL1, P18064PIL2, P18064PIL3, P18064PIL4, P18064PIW1, P18064PIW2, P18064PIW3, P18064PIW4, P18068, P18068L1, P18068L2, P18068L3, P18068L4, P18068W1, P18068W2, P18068W3, P18068W4, P18068P, P18068PL1, P18068PL2, P18068PL3, P18068PL4, P18068PW1, P18068PW2, P18068PW3, P18068PW4, P18068PI, P18068PIL1, P18068PIL2, P18068PIL3, P18068PIL4, P18068PIW1, P18068PIW2, P18068PIW3, P18068PIW4, P18074, P18074L1, P18074L2, P18074L3, P18074L4, P18074W1, P18074W2, P18074W3, P18074W4, P18074P, P18074PL1, P18074PL2, P18074PL3, P18074PL4, P18074PW1, P18074PW2, P18074PW3, P18074PW4, P18074PI, P18074PIL1, P18074PIL2, P18074PIL3, P18074PIL4, P18074PIW1, P18074PIW2, P18074PIW3, P18074PIW4, P18076, P18076L1, P18076L2, P18076L3, P18076L4, P18076W1, P18076W2, P18076W3, P18076W4, P18076P, P18076PL1, P18076PL2, P18076PL3, P18076PL4, P18076PW1, P18076PW2, P18076PW3, P18076PW4, P18076PI, P18076PIL1, P18076PIL2, P18076PIL3, P18076PIL4, P18076PIW1, P18076PIW2, P18076PIW3, P18076PIW4, P18078, P18078L1, P18078L2, P18078L3, P18078L4, P18078W1, P18078W2, P18078W3, P18078W4, P18078P, P18078PL1, P18078PL2, P18078PL3, P18078PL4, P18078PW1, P18078PW2, P18078PW3, P18078PW4, P18078PI, P18078PIL1, P18078PIL2, P18078PIL3, P18078PIL4, P18078PIW1, P18078PIW2, P18078PIW3, P18078PIW4, P18082, P18082L1, P18082L2, P18082L3, P18082L4, P18082W1, P18082W2, P18082W3, P18082W4, P18082P, P18082PL1, P18082PL2, P18082PL3, P18082PL4, P18082PW1, P18082PW2, P18082PW3, P18082PW4, P18082PI, P18082PIL1, P18082PIL2, P18082PIL3, P18082PIL4, P18082PIW1, P18082PIW2, P18082PIW3, P18082PIW4, P18090, P18090L1, P18090L2, P18090L3, P18090L4, P18090W1, P18090W2, P18090W3, P18090W4, P18090P, P18090PL1, P18090PL2, P18090PL3, P18090PL4, P18090PW1, P18090PW2, P18090PW3, P18090PW4, P18090PI, P18090PIL1, P18090PIL2, P18090PIL3, P18090PIL4, P18090PIW1, P18090PIW2, P18090PIW3, P18090PIW4, P18092, P18092L1, P18092L2, P18092L3, P18092L4, P18092W1, P18092W2, P18092W3, P18092W4, P18092P, P18092PL1, P18092PL2, P18092PL3, P18092PL4, P18092PW1, P18092PW2, P18092PW3, P18092PW4, P18092PI, P18092PIL1, P18092PIL2, P18092PIL3, P18092PIL4, P18092PIW1, P18092PIW2, P18092PIW3, P18092PIW4, P18094, P18094L1, P18094L2, P18094L3, P18094L4, P18094W1, P18094W2, P18094W3, P18094W4, P18094P, P18094PL1, P18094PL2, P18094PL3, P18094PL4, P18094PW1, P18094PW2, P18094PW3, P18094PW4, P18094PI, P18094PIL1, P18094PIL2, P18094PIL3, P18094PIL4, P18094PIW1, P18094PIW2, P18094PIW3, P18094PIW4