78 Results
Filters 9
Popularity Product Name Mfg. Part Number Order Number

Weiss, Mainstream Engineering, Field Controls, CPS, Software, Training, Testing, Tools & Training, Tools, Hydronics & Plumbing

R134A Snap-N-Seal Automotive Coupler H26-517
R134A Snap-N-Seal Automotive Coupler
Description: R134A Snap Coupler 1/4" HI;
Brand: CPS Mfg #: QCH90
View Similar Items
EPA Section 608 Study Course Qwik608® B21-521
EPA Section 608 Study Course Qwik608®
Description: Qwik608® — English (includes: "Field Reference Manual" and "QwikStudy Guide", software download code for EPA Section 608 interactive software, streamable Video, and downloadable or streamable Audio study materials) with online QwikTest;
Brand: Mainstream Engineering Mfg #: QT3009
Catalog Pg.: 1109 View Similar Items
Industrial Glass Vari-Angle® Thermometer L87-240
Industrial Glass Vari-Angle® Thermometer
Length: 3-1/2"; Temp. Range: 0°F to 120°F;
Brand: Weiss Mfg #: 9VU35-120
Catalog Pg.: 542 View Similar Items
Hot Water Bi-Metal Dial Thermometer L41-720
Hot Water Bi-Metal Dial Thermometer
Brand: Weiss Mfg #: HWBM25
Catalog Pg.: 541 View Similar Items
Liquid-Filled Severe Service Gauge L38-640
Liquid-Filled Severe Service Gauge
Type: 2-1/2" Round; Range: 0 to 30 PSI/Bar;
Brand: Weiss Mfg #: LF251-030-4L
Catalog Pg.: 541 View Similar Items
Commercial Pressure Gauge L41-718
Commercial Pressure Gauge
PSI: 0 to 160;
Brand: Weiss Mfg #: 4CTS-160
Catalog Pg.: 541 View Similar Items
R134A Manual Automotive Coupler H26-520
R134A Manual Automotive Coupler
Description: R134A Manual Coupler 1/4" LO;
Brand: CPS Mfg #: QCL14
View Similar Items
EPA Section 608 Study Course Qwik608® - SPANISH B18-827
EPA Section 608 Study Course Qwik608® - SPANISH
Description: Qwik608® — Spanish (includes: "Field Reference Manual" and "QwikStudy™ Guide", software download code for EPA Section 608 interactive software, streamable Video, and downloadable or streamable Audio study materials) with paper test;
Brand: Mainstream Engineering Mfg #: QT3004
Catalog Pg.: 1109 View Similar Items
Industrial Glass Vari-Angle® Thermometer L87-244
Industrial Glass Vari-Angle® Thermometer
Length: 6"; Temp. Range: 30°F to 240°F;
Brand: Weiss Mfg #: 9VU6-240
Catalog Pg.: 542 View Similar Items
EPA Section 608 Test Qwik608® B15-370
EPA Section 608 Test Qwik608®
Description: Qwik608® — EPA Test Only: Online QwikTest Only (bilingual);
Brand: Mainstream Engineering Mfg #: QT3008
Catalog Pg.: 1109 View Similar Items
Liquid-Filled Severe Service Gauge L38-637
Liquid-Filled Severe Service Gauge
Type: 2-1/2" Round; Range: 0 to 30" Hg/Bar (Vacuum);
Brand: Weiss Mfg #: LF251-VAC-4L
Catalog Pg.: 541 View Similar Items
EPA Section 608 Test Qwik608® - SPANISH B18-828
EPA Section 608 Test Qwik608® - SPANISH
Description: Qwik608® — EPA Test Only: Spanish Paper Test Only;
Brand: Mainstream Engineering Mfg #: QT3002
Catalog Pg.: 1109 View Similar Items
R134A Manual Automotive Coupler H26-519
R134A Manual Automotive Coupler
Description: R134A Manual Coupler 1/4" HI;
Brand: CPS Mfg #: QCH14
View Similar Items
Industrial Glass Vari-Angle® Thermometer L87-241
Industrial Glass Vari-Angle® Thermometer
Length: 3-1/2"; Temp. Range: 30°F to 180°F;
Brand: Weiss Mfg #: 9VU35-180
Catalog Pg.: 542 View Similar Items
Pressure Gauge L38-172
Pressure Gauge
PSI: 0 to 300; Conn.: 1/4" NPT, Bottom;
Brand: Weiss Mfg #: TL20-300-4L
Catalog Pg.: 540 View Similar Items
Pressure Gauge L38-162
Pressure Gauge
PSI: 0 to 30; Conn.: 1/4" NPT, Back;
Brand: Weiss Mfg #: TL20-030-4B
Catalog Pg.: 540 View Similar Items
Commercial Pressure Gauge L41-715
Commercial Pressure Gauge
PSI: 0 to 30;
Brand: Weiss Mfg #: 4CTS-030
Catalog Pg.: 541 View Similar Items
Liquid-Filled Severe Service Gauge L38-644
Liquid-Filled Severe Service Gauge
Type: 2-1/2" Round; Range: 0 to 200 PSI/Bar;
Brand: Weiss Mfg #: LF251-200-4L
Catalog Pg.: 541 View Similar Items
Industrial Glass Vari-Angle® Thermometer L87-243
Industrial Glass Vari-Angle® Thermometer
Length: 6"; Temp. Range: 0°F to 120°F;
Brand: Weiss Mfg #: 9VU6-120
Catalog Pg.: 542 View Similar Items
Liquid-Filled Severe Service Gauge L38-643
Liquid-Filled Severe Service Gauge
Type: 2-1/2" Round; Range: 0 to 160 PSI/Bar;
Brand: Weiss Mfg #: LF251-160-4L
Catalog Pg.: 541 View Similar Items
Liquid-Filled Severe Service Gauge L38-645
Liquid-Filled Severe Service Gauge
Type: 2-1/2" Round; Range: 0 to 300 PSI/Bar;
Brand: Weiss Mfg #: LF251-300-4L
Catalog Pg.: 541 View Similar Items
Pressure Gauge L38-159
Pressure Gauge
PSI: 0 to 30; Conn.: 1/8" NPT, Bottom;
Brand: Weiss Mfg #: TL20-030-8L
Catalog Pg.: 540 View Similar Items
Pressure Gauge L38-166
Pressure Gauge
PSI: 0 to 60; Conn.: 1/4" NPT, Back;
Brand: Weiss Mfg #: TL20-060-4B
Catalog Pg.: 540 View Similar Items
Pressure Gauge L38-163
Pressure Gauge
PSI: 0 to 60; Conn.: 1/8" NPT, Bottom;
Brand: Weiss Mfg #: TL20-060-8L
Catalog Pg.: 540 View Similar Items
FTL Finance
Powered by Site Search powered by SLI Systems

© 2025 Johnstone Supply. All rights reserved.

Select products to compare.
Compare