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#25 Thermal Expansion Tank (8.0 Gal Volume)

Calefactio HGTE-25 is a #25 bladder-type expansion tank designed for use in residential hot water pl..

$ 128.95

0018e ECM High-Efficiency Circulator Pump w/ Bluetooth Communication (Standard Flange), 120V

Taco 0018e3-2f2 is a variable speed, high-efficiency wet rotor circulator with an ECM permanent magn..

$ 318.95

006E3 & SPE-1 SMART PLUS-E (BAG OF 2) Press 1" DIN union

Designed for use with Taco circulators with union connections. Sold in pairs, with each set includes..

$ 19.95

006E3 & SPE-1 SMART PLUS-E (BAG OF 2) Press 1" DIN union

Designed for use with Taco circulators with union connections. Sold in pairs, with each set includes..

$ 19.95

1" Threaded Isolator Flange Valve

1'''' Threaded Flange Isolator Valve with Additional T-HandlePressure Rated: 400 WOGInlet Connection..

$ 28.95

1/2" FNPT x 1/2" Union FNPT Combination Boiler Feed Valve (Pressure Reducing w/ Pressure Relief) & Backflow Preventer

Taco 3450 cartridge style fill valve combines pressure regulating valve, dual check backflow prevent..

$ 115.95

3150 HydroStat, Temperature Limit & Low Water Cut-Off for Oil Boilers, 120V

Hydrolevel 3150 HydroStat is a 120V universal dual-function control for Oil boilers (incl. w/ tankle..

$ 162.95

3200-Plus Fuel Smart HydroStat for Gas Boilers (LWCO, Temperature Limit & Boiler Reset Control), 120/24V

Hydrolevel Fuel Smart 3200-Plus HydroStat is a 120V universal triple-function control for Gas boiler..

$ 184.95

3250-Plus Fuel Smart HydroStat for Oil Boilers (LWCO, Temperature Limit & Boiler Reset Control), 120V

Hydrolevel Fuel Smart 3250-Plus HydroStat is a 120V universal triple-function control for Oil boiler..

$ 168.95

335M2, 3/4" Boiler Pressure Relief Valve (30 psi), Female NPT, 510K BTU

3/4" Female Pressure Relief ValveSize: 3/4"Connections: Female NPT (inlet) x Female NPT (outlet)Reli..

$ 45.22

CycleGard CG400-2090, Steam Primary Low Water Cut-Off w/ Auto Reset, 24V

Hydrolevel CycleGard 400-2090 is a 24V low water cut-off w/ auto reset and intermittent level test (..

$ 200.95

CycleGard CG450-1560, Steam Primary Low Water Cut-Off w/ Auto Reset, 120V

Hydrolevel CycleGard 450-1560 is a 120V low water cut-off w/ auto reset and intermittent level test ..

$ 206.95

DMF150 PressurePal Hydronic Digital System Mini Feeder, 4.6 gallon

PRESSURE PAL DMF150 Digital Mini Feeder 0-45psig (0-310 kPa) pressure setpoint with adjustab..

$ 520.95

M335M2, 3/4" Boiler Pressure Relief Valve (30 psi), Male NPT, 510K BTU

3/4 Male Pressure Relief Valve Size: 3/4" Connections: Male NPT (inlet) x Female NPT (outl..

$ 51.38

OS-100 Outdoor Sensor Kit for HydroStat 3200-Plus and 3250-Plus

Hydrolevel OS-100 is a wired outdoor sensor kit, designed to monitor outdoor temperature to adjust t..

$ 51.95

Safgard 400, Non-Cycling Steam Primary Low Water Cut-Off w/ Auto Reset, 24V

Hydrolevel Safgard 400 is a 24V non-cycling low water cut-off (LWCO), designed for use as a primary ..

$ 180.95

Safgard 450, Non-Cycling Steam Primary Low Water Cut-Off w/ Auto Reset, 120V

Hydrolevel Safgard 450 is a 120V non-cycling low water cut-off (LWCO), designed for use as a primary..

$ 179.95

Safgard 550, Low Water Cut-Off w/ Manual Reset & Test Button, Gas or Oil, 120V

Hydrolevel Safgard 550 is a 120V commercial-grade low water cut-off w/ manual reset and test buttons..

$ 184.95

Safgard 550SV, Low Water Cut-Off w/ Manual Reset & Test Button, Short Probe, Gas or Oil, 120V

Hydrolevel Safgard 550SV is a 120V commercial-grade low water cut-off (LWCO) for Gas or Oil-fired ho..

$ 182.95

Safguard 1100 Low Water Cutoff w/ Auto Reset & Burner Circuit Test Button (incl. wiring harness), 24V

Hydrolevel Safgard 1100 is a compact 24V low water cut-off (LWCO) w/ auto reset, designed to immedia..

$ 97.95

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