184 Results
Filters 6
Popularity Product Name Mfg. Part Number Order Number

CHINA, Water Feeders, Valves & Controls, System Components, Equipment, Hydronics & Plumbing

Tri-O-Meter Boiler Gauge L39-654
Tri-O-Meter Boiler Gauge
Type: 2.5" Round; PSI: 0 to 75; Conn.: 1/4" NPT, Back w/2" Extension;
Brand: Weiss Mfg #: CTP25RX
Catalog Pg.: 541 View Similar Items
Baseboard Heater Thermostat X71-206
Baseboard Heater Thermostat
Color: White; Poles: Single;
Brand: TPI Mfg #: TBS
Catalog Pg.: 625 View Similar Items
Tri-O-Meter Boiler Gauge L39-655
Tri-O-Meter Boiler Gauge
Type: 2.5" Round; PSI: 0 to 75; Conn.: 1/4" NPT, Back;
Brand: Weiss Mfg #: CTP25R
Catalog Pg.: 541 View Similar Items
Liquid-Filled Severe Service Gauge L38-642
Liquid-Filled Severe Service Gauge
Type: 2-1/2" Round; Range: 0 to 100 PSI/Bar;
Brand: Weiss Mfg #: LF251-100-4L
Catalog Pg.: 541 View Similar Items
Pressure Gauge L38-168
Pressure Gauge
PSI: 0 to 100; Conn.: 1/4" NPT, Bottom;
Brand: Weiss Mfg #: TL20-100-4L
Catalog Pg.: 540 View Similar Items
Tankless Water Heater Isolation Valve EXP Series R56-886
Tankless Water Heater Isolation Valve EXP Series
Description: 3/4" SWT LF ISOLATOR EXP E2 w/PRV; Size: 3/4";
Brand: Webstone Mfg #: H-54443WPR
Catalog Pg.: 588 View Similar Items
Tankless Water Heater Isolation Valve EXP Series R56-883
Tankless Water Heater Isolation Valve EXP Series
Description: 3/4" IPS LF ISOLATOR EXP E2 w/PRV; Size: 3/4";
Brand: Webstone Mfg #: H-44443WPR
Catalog Pg.: 588 View Similar Items
Control-R™ Wireless Demand Recirculation Kit (Pump+Push Button) N46-291
Control-R™ Wireless Demand Recirculation Kit (Pump+Push Button)
Description: Control-R Wi-Fi Module w/ Push Button and Pump;
Brand: Rinnai Mfg #: RWMKT01P
Catalog Pg.: 584 View Similar Items
1" Plumb Easy Valve Kit N46-057
1" Plumb Easy Valve Kit
Description: Easy Valve Kit 1"; Wt. Lbs.: .5;
Brand: Navien Mfg #: 30010950A
Catalog Pg.: 587 View Similar Items
Pressure Gauge L38-164
Pressure Gauge
PSI: 0 to 60; Conn.: 1/4" NPT, Bottom;
Brand: Weiss Mfg #: TL20-060-4L
Catalog Pg.: 540 View Similar Items
Thermostats for "BC" Baseboard Heater X71-207
Thermostats for "BC" Baseboard Heater
Color: White; Poles: Double;
Brand: TPI Mfg #: TBD
Catalog Pg.: 625 View Similar Items
Control-R™ Wireless Demand Recirculation Kit (Pump+Push Button, Temp Sensor) N46-293
Control-R™ Wireless Demand Recirculation Kit (Pump+Push Button, Temp Sensor)
Description: Control-R Wi-Fi Module w/Push Button, Temperature Sensor and Pump;
Brand: Rinnai Mfg #: RWMKT03P
Catalog Pg.: 584 View Similar Items
Pressure Gauge L38-171
Pressure Gauge
PSI: 0 to 200; Conn.: 1/4" NPT, Bottom;
Brand: Weiss Mfg #: TL20-200-4L
Catalog Pg.: 540 View Similar Items
Tri-O-Meter Boiler Gauge L39-656
Tri-O-Meter Boiler Gauge
Type: 4.0" Square; PSI: 0 to 75; Conn.: 1/2" NPT, Back;
Brand: Weiss Mfg #: CTP40RSX
Catalog Pg.: 541 View Similar Items
Pressure Gauge L38-160
Pressure Gauge
PSI: 0 to 30; Conn.: 1/4" NPT, Bottom;
Brand: Weiss Mfg #: TL20-030-4L
Catalog Pg.: 540 View Similar Items
Thermowell, 3/4" NPT 3-1/2" Brass Socket L41-713
Thermowell, 3/4" NPT 3-1/2" Brass Socket
Description: Thermowell, 3/4" NPT 3-1/2" Brass Socket;
Brand: Weiss Mfg #: E35-75BS
Catalog Pg.: 542 View Similar Items
Liquid-Filled Severe Service Gauge L38-641
Liquid-Filled Severe Service Gauge
Type: 2-1/2" Round; Range: 0 to 60 PSI/Bar;
Brand: Weiss Mfg #: LF251-060-4L
Catalog Pg.: 541 View Similar Items
Tankless Water Heater Service Valve The Isolator® EXP E2 Series R58-313
Tankless Water Heater Service Valve The Isolator® EXP E2 Series
Description: 3/4" PRS LF ISOLATOR EXP E2 w/PRV; Size: 3/4";
Brand: Webstone Mfg #: H-84443WPR
Catalog Pg.: 588 View Similar Items
Tri-O-Meter Boiler Gauge L39-657
Tri-O-Meter Boiler Gauge
Type: 4.0" Square; PSI: 0 to 75; Conn.: 1/2" NPT, Bottom;
Brand: Weiss Mfg #: CTP40L
Catalog Pg.: 541 View Similar Items
The Isolator E-X-P E2 Tankless Water Heater Service Valve Kit Hot & Cold Set of Full Port Forged Brass Ball Valves R58-414
The Isolator E-X-P E2 Tankless Water Heater Service Valve Kit Hot & Cold Set of Full Port Forged Brass Ball Valves
Description: 3/4" PRS LF ISOLATOR EXP E2 w/LF PRV; Size: 3/4"; Wt. Lbs.: 3.521;
Brand: Webstone Mfg #: H-84443WPR-LF
Catalog Pg.: 588 View Similar Items
Hydro-Core Flex Combi Kit SWT Complete Near Boiler Manifold and Piping Install Kit R56-904
Hydro-Core Flex Combi Kit SWT Complete Near Boiler Manifold and Piping Install Kit
Description: 1-1/4" SWT x 1 HYDRO-CORE CMPLT NBP KIT;
Brand: Webstone Mfg #: H-5FK5-CH
Catalog Pg.: 587 View Similar Items
Element Wrench N46-137
Element Wrench
Description: Element Wrench; Length: 5";
Brand: AO Smith Mfg #: 100108413
Catalog Pg.: 575 View Similar Items
Pro-Pal Series® Union-Ball Drain™ Full Port Forged Brass Ball Valves with Single Union End, Hi-Flow Hose Drain and Reversible Handle R56-334
Pro-Pal Series® Union-Ball Drain™ Full Port Forged Brass Ball Valves with Single Union End, Hi-Flow Hose Drain and Reversible Handle
Description: 3/4" CxC BALL DRAIN; Size: 3/4" C x C;
Brand: Webstone Mfg #: H-50613
Catalog Pg.: 500 View Similar Items
Pro-Connect Push™ Flexible Water Heater Connector with Full Port Brass Ball Valve R87-973
Pro-Connect Push™ Flexible Water Heater Connector with Full Port Brass Ball Valve
Description: 3/4" PRO-PUSH BV x FPT LF WATER CNCT; Length: 18"; Conn.: 3/4";
Brand: Webstone Mfg #: H-62033W-18
Catalog Pg.: 591 View Similar Items
FTL Finance
Powered by Site Search powered by SLI Systems

© 2025 Johnstone Supply. All rights reserved.

Select products to compare.
Compare