66 Results

Mainstream Engineering, Extech, ESP, Software, Training, Testing, Tools & Training, Temperature & Humidity Measurement, Test Instruments, Ventilation & IAQ, Refrigeration

Qwiklug® Compressor Terminal Repair Kit G32-265
Qwiklug® Compressor Terminal Repair Kit
Wire Gauge: 10; Lead Length: 4' w/ Spade Terminal; Pkg. Qty.: 3;
Brand: Mainstream Engineering Mfg #: QT2910

Qwiklug® Compressor Terminal Repair Kit G32-266
Qwiklug® Compressor Terminal Repair Kit
Wire Gauge: 12; Lead Length: 4' w/ Spade Terminal; Pkg. Qty.: 3;
Brand: Mainstream Engineering Mfg #: QT2912

Universal Humidifier Solenoid B17-395
Universal Humidifier Solenoid
Description: Universal Humidifier Solenoid 24V Kit with Multiple Fittings;
Brand: ESP Mfg #: UHS24

EPA Section 608 Study Course Qwik608® B13-041
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 paper test;
Brand: Mainstream Engineering Mfg #: QT3000

Teflon Seal Gaskets B16-831
Teflon Seal Gaskets
Description: Teflon Seal Gaskets (12-Pk.) 3 each TR034-6, TR100-6, TR114-6, and TR134-6;
Brand: ESP Mfg #: TR10-12

Qwiklug® Compressor Terminal Repair Kit G37-396
Qwiklug® Compressor Terminal Repair Kit
Wire Gauge: 10; Lead Length: 2' w/ Wire Nut; Pkg. Qty.: 3;
Brand: Mainstream Engineering Mfg #: QT2810

16 Teflon Seal Gasket B16-827
16 Teflon Seal Gasket
Description: 16 Teflon Seal Gasket for 3/4" Valve (6-Pk.);
Brand: ESP Mfg #: TR034-6

Replacement Humidifier Pad B12-142
Replacement Humidifier Pad
Description: 9-7/8" x 9-7/8" x 1-7/8"; Replaces: Aprilaire Models 110, 120, 550;
Brand: ESP Mfg #: A10PR

Replacement Humidifier Pad B12-144
Replacement Humidifier Pad
Description: 10" x 13" x 1-1/2"; Replaces: Aprilaire Model 350, 360, 560, 760;
Brand: ESP Mfg #: A35PR

EPA Section 608 Test Qwik608® B13-042
EPA Section 608 Test Qwik608®
Description: Qwik608® — EPA Test Only: English Paper Test Only;
Brand: Mainstream Engineering Mfg #: QT3001

Replacement Humidifier Pad B12-143
Replacement Humidifier Pad
Description: 14-7/8" x 11-3/8" x 1-7/8"; Replaces: Aprilaire Models 112, 136, 224, 440, 445;
Brand: ESP Mfg #: A12PR

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


Universal Humidifier Solenoid B21-079
Universal Humidifier Solenoid
Description: Universal Humidifier Solenoid 24V;
Brand: ESP Mfg #: UHS99

Qwiklug® Compressor Terminal Repair Kit G37-397
Qwiklug® Compressor Terminal Repair Kit
Wire Gauge: 12; Lead Length: 2' w/ Wire Nut; Pkg. Qty.: 3;
Brand: Mainstream Engineering Mfg #: QT2812

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

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

12 Teflon Seal Gasket B16-829
12 Teflon Seal Gasket
Description: 12 Teflon Seal Gasket for 1-1/4" Valve (6-Pk.);
Brand: ESP Mfg #: TR114-6

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

Horizontal Rotalock Valve B12-786
Horizontal Rotalock Valve
Description: Horizontal Rotalock Valve; Conn. Size: 7/8" ODF; Rotalock Conn.: 1-1/4" –12;
Brand: ESP Mfg #: H078OD114T

Sure Temp B13-598
Sure Temp
Temp. Range: -40°F to +180°F;
Brand: ESP Mfg #: ST1236-31

Horizontal Rotalock Valve B12-784
Horizontal Rotalock Valve
Description: Horizontal Rotalock Valve; Conn. Size: 5/8" ODF; Rotalock Conn.: 1"–14;
Brand: ESP Mfg #: H058OD100T

14 Teflon Seal Gasket B16-828
14 Teflon Seal Gasket
Description: 14 Teflon Seal Gasket for 1" Valve (6-Pk.);
Brand: ESP Mfg #: TR100-6

12 Teflon Seal Gasket B16-830
12 Teflon Seal Gasket
Description: 12 Teflon Seal Gasket for 1-3/4" Valve (6-Pk.);
Brand: ESP Mfg #: TR134-6
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