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

Watts, Mainstream Engineering, KD, Software, Training, Testing, Tools & Training, Temperature & Humidity Measurement, Test Instruments, Hydronics & Plumbing

Fill valve and backflow preventor R54-576
Fill valve and backflow preventor
Model #: 911; Inlet Conn.: 1/2" NPT; Outlet Conn.: 1/2" NPT; Conn. Size: 1/2";
Brand: Watts Mfg #: 0386463
Catalog Pg.: 509 View Similar Items
High Capacity Water Feed Regulator 1/2 SB1156F R55-794
High Capacity Water Feed Regulator 1/2 SB1156F
Model #: SB1156F; Inlet Conn.: 1/2" Union Solder; Outlet Conn.: 1/2 IN; Conn. Size: 1/2"; Outlet Pressure Range PSI: 10-25; Outlet Pressure Preset PSI: 15;
Brand: Watts Mfg #: 386422
Catalog Pg.: 508 View Similar Items
1/2" Non-Testable Dual Check Valve with Atmospheric Vent R55-748
1/2" Non-Testable Dual Check Valve with Atmospheric Vent
Model #: BBFP; Conn. Size: 1/2";
Brand: Watts Mfg #: 0063190
Catalog Pg.: 510 View Similar Items
Water Pressure Reducing Valve 3/4 LF25AUB-Z3 R56-220
Water Pressure Reducing Valve 3/4 LF25AUB-Z3
Model #: LF25AUB-Z3 3/4; Conn. Size: 3/4"; Pressure Range PSIG: 25-75 psi; Body Type: Lead Free Copper Silicon Alloy;
Brand: Watts Mfg #: 9257
Catalog Pg.: 509 View Similar Items
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
Catalog Pg.: 1109 View Similar Items
Tempering Valve 1 LFN170M3 R56-245
Tempering Valve 1 LFN170M3
Model #: LF-N 170- M3; Type: 1 170; Conn. Size: 1" x 1" NPT; Temp. Range: 120°F to 180°F; Min. Flow Rate: 4 gpm; Body Type: Lead–Free Brass; Max. Flow: 68 GPM at 45 PSI; Max. Pressure: 125 psi;
Brand: Watts Mfg #: 559125
Catalog Pg.: 519 View Similar Items
Reduced Pressure Zone Assembly 1/2 LF009-QT R56-266
Reduced Pressure Zone Assembly 1/2 LF009-QT
Model #: LF009-QT 1/2; Conn. Size: 1/2"; Pressure Range PSIG: 175 psi; Body Type: Cast Bronze;
Brand: Watts Mfg #: 391002
Catalog Pg.: 511 View Similar Items
1/2" Boiler Drain Shutoff R56-852
1/2" Boiler Drain Shutoff
Model #: LFBD-QT; Conn. Size: 1/2"; Size: 1/2" x 3/4"; Inlet Conn.: Male Threaded or Solder; Outlet Conn.: Hose; Description: Boiler Drain Shutoff; Max. Pressure: 200 psi; Temp. °F: 180° F;
Brand: Watts Mfg #: 0123631
Catalog Pg.: 524 View Similar Items
Water Pressure Safety Relief Valve For Protection of Hot Water Heating Boilers R55-840
Water Pressure Safety Relief Valve For Protection of Hot Water Heating Boilers
Model #: 174A-150 3/4; Inlet Conn.: 3/4"; Outlet Conn.: 3/4"; Conn. Size: 3/4"; Body Type: Bronze; Pressure Setting: 150; BtuH: 2,445,000;
Brand: Watts Mfg #: 274836
Catalog Pg.: 507 View Similar Items
Reduced Pressure Zone Assembly 2 LF009M2-QT R87-838
Reduced Pressure Zone Assembly 2 LF009M2-QT
Model #: LF009M2-QT 2; Conn. Size: 2"; Pressure Range PSIG: 175 psi; Body Type: Cast Bronze;
Brand: Watts Mfg #: 391007
Catalog Pg.: 511 View Similar Items
Reduced Pressure Zone Assembly 2 009M2-QT R87-678
Reduced Pressure Zone Assembly 2 009M2-QT
Model #: 009M2-QT 2; Conn. Size: 2"; Pressure Range PSIG: 175 psi; Body Type: Cast Bronze;
Brand: Watts Mfg #: 63010
Catalog Pg.: 510 View Similar Items
Water Pressure Reducing Valve 1-1/4 LF25AUB-Z3(w/press) R58-587
Water Pressure Reducing Valve 1-1/4 LF25AUB-Z3(w/press)
Model #: LF25AUB-Z3 (W/PRESS) 1 1/4; Conn. Size: 1 1/4"; Pressure Range PSIG: 25-75 PSI; Body Type: Lead Free Cast Copper Silicon Alloy;
Brand: Watts Mfg #: 0125574
View Similar Items
LF100XL-4 Temperature and Pressure Relief Valve N45-634
LF100XL-4 Temperature and Pressure Relief Valve
Model #: LF100XL-150210; PSI: 150; Conn. Size: 3/4"; Length: 3";
Brand: Watts Mfg #: 0556000
Catalog Pg.: 576 View Similar Items
Reduced Pressure Zone Assembly 1 1/2 009M2-QT R87-677
Reduced Pressure Zone Assembly 1 1/2 009M2-QT
Model #: 009M2-QT 1 1/2; Conn. Size: 1-1/2"; Pressure Range PSIG: 175 psi; Body Type: Cast Bronze;
Brand: Watts Mfg #: 62921
Catalog Pg.: 510 View Similar Items
Cartridge Filter Anti-Scale System R87-844
Cartridge Filter Anti-Scale System
Description: OneFlow Anti-Scale System, Connection Sizes: 3/4" (20mm); Conn. Size: 3/4"; Length: 22"; Wt. Lbs.: 14; Max. Height: 5";
Brand: Watts Mfg #: 0002182 OFTWH
Catalog Pg.: 590 View Similar Items
Reduced Pressure Zone Assembly 1 LF009M2-QT R87-835
Reduced Pressure Zone Assembly 1 LF009M2-QT
Model #: LF009M2-QT 1; Conn. Size: 1"; Pressure Range PSIG: 175 psi; Body Type: Cast Bronze;
Brand: Watts Mfg #: 391004
Catalog Pg.: 511 View Similar Items
3/4" Lead Free Temperature and Pressure Relief Valve R56-898
3/4" Lead Free Temperature and Pressure Relief Valve
Model #: LFL100XL3-150210 CAN; PSI: 150; Conn. Size: 3/4"; Length: 3";
Brand: Watts Mfg #: 0556003
Catalog Pg.: 576 View Similar Items
Reduced Pressure Zone Assembly 1 009M2-QT R55-725
Reduced Pressure Zone Assembly 1 009M2-QT
Model #: 009M2-QT 1; Conn. Size: 1"; Pressure Range PSIG: 175 psi; Body Type: Cast Bronze;
Brand: Watts Mfg #: 63020
Catalog Pg.: 510 View Similar Items
2-piece Full Port Ball Valve 1 FBVS-3C R54-734
2-piece Full Port Ball Valve 1 FBVS-3C
Model #: FBVS-3; Conn. Size: 1" Sweat; Ball/Stem Material: Brass;
Brand: Watts Mfg #: 547112
Catalog Pg.: 520 View Similar Items
Reduced Pressure Zone Assembly 3/4 LF009M3-QT R87-834
Reduced Pressure Zone Assembly 3/4 LF009M3-QT
Model #: LF009M3-QT 3/4; Conn. Size: 3/4"; Pressure Range PSIG: 175 psi; Body Type: Cast Bronze;
Brand: Watts Mfg #: 391003
Catalog Pg.: 511 View Similar Items
Tempering Valve 3/4 LFN170M3 R56-244
Tempering Valve 3/4 LFN170M3
Model #: LF-N 170- M3; Type: 3/4 170; Conn. Size: 3/4" x 3/4" NPT; Temp. Range: 120°F to 180°F; Min. Flow Rate: 3 gpm; Body Type: Lead–Free Brass; Max. Flow: 45 GPM at 45 PSI; Max. Pressure: 125 psi;
Brand: Watts Mfg #: 559124
Catalog Pg.: 519 View Similar Items
3/4" Boiler Drain Shutoff R56-853
3/4" Boiler Drain Shutoff
Model #: LFBD-QT; Conn. Size: 3/4"; Size: 3/4" x 3/4"; Inlet Conn.: Male Threaded or Solder; Outlet Conn.: Hose; Description: Boiler Drain Shutoff; Max. Pressure: 200 psi; Temp. °F: 180° F;
Brand: Watts Mfg #: 0123632
Catalog Pg.: 524 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
2-piece Full Port Ball Valve 1 FBV-3C R54-600
2-piece Full Port Ball Valve 1 FBV-3C
Model #: FBV-3; Conn. Size: 1" Threaded; Ball/Stem Material: Brass;
Brand: Watts Mfg #: 547104
Catalog Pg.: 520 View Similar Items
FTL Finance
Powered by Site Search powered by SLI Systems

© 2025 Johnstone Supply. All rights reserved.

Select products to compare.
Compare