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We are a manufacturer and marketer of innovative products for heating, cooling, plumbing and process works applications. Our expertise is the control of temperature, pressure and flow of water-based fluids. Our products range from control valves, balancing devices and flow switches to zone relays and heat meters.

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Picture of BOILER TRIM KIT, 1 SWEAT, 4.4GAL WITH ASSE 1013 BACK FLOW

BOILER TRIM KIT, 1 SWEAT, 4.4GAL WITH ASSE 1013 BACK FLOW

CALEFFI:NA553369R
SKU: CALEFFI:NA553369R
$729.12
Picture of BOILER TRIM KIT, 1 NPT, 4.4GAL WITH ASSE 1013 BACK FLOW

BOILER TRIM KIT, 1 NPT, 4.4GAL WITH ASSE 1013 BACK FLOW

CALEFFI:NA553362R
SKU: CALEFFI:NA553362R
$736.96
Picture of TWISTFLOW™ RADIANT MANIFOLD ASSEMBLY 6 LOOP 1 1/4 INVERTED

TWISTFLOW™ RADIANT MANIFOLD ASSEMBLY 6 LOOP 1 1/4 INVERTED

CALEFFI:6687F5S1A IN
SKU: CALEFFI:6687F5S1A IN
$738.36
Picture of SEP4 4-IN-1 AIR, DIRT, HYDRO & MAGNETIC SEPARATOR 1-1/4 NPT

SEP4 4-IN-1 AIR, DIRT, HYDRO & MAGNETIC SEPARATOR 1-1/4 NPT

CALEFFI:549507A
SKU: CALEFFI:549507A
$740.10
Picture of HYDRO SEPARATOR 2 SWT UNION

HYDRO SEPARATOR 2 SWT UNION

CALEFFI:548099A
SKU: CALEFFI:548099A
$743.23
Picture of 1-1/2 FNPT BACKFLOW PREVENTER

1-1/2 FNPT BACKFLOW PREVENTER

CALEFFI:574801A
SKU: CALEFFI:574801A
$745.08
Picture of HYDRO SEPARATOR 1-1/2 PRESS UNION

HYDRO SEPARATOR 1-1/2 PRESS UNION

CALEFFI:548068A
SKU: CALEFFI:548068A
$751.86
Picture of 1-1/4 MANIFOLD ASSEMBLY 7 OUTLETS

1-1/4 MANIFOLD ASSEMBLY 7 OUTLETS

CALEFFI:6687G5S1A
SKU: CALEFFI:6687G5S1A
$754.99
Picture of MANIFOLDMIXING STATION, FIXED TEMP, 15-58 PUMP

MANIFOLDMIXING STATION, FIXED TEMP, 15-58 PUMP

CALEFFI:NA17256
SKU: CALEFFI:NA17256
$758.91
Picture of BOILER TRIM KIT, 1 PRESS, 4.4GAL WITH ASSE 1013 BACK FLOW

BOILER TRIM KIT, 1 PRESS, 4.4GAL WITH ASSE 1013 BACK FLOW

CALEFFI:NA553366R
SKU: CALEFFI:NA553366R
$772.24
Picture of DRAINBACK SOLAR PUMP STATION

DRAINBACK SOLAR PUMP STATION

CALEFFI:278951A
SKU: CALEFFI:278951A
$772.24
Picture of HYDRO SEPARATOR 2 NPT UNION

HYDRO SEPARATOR 2 NPT UNION

CALEFFI:548009A
SKU: CALEFFI:548009A
$778.51
Picture of HYDROLINK WITH AIR VENT & DRAIN 2+2, OUTLET CENTER DIM. 125M

HYDROLINK WITH AIR VENT & DRAIN 2+2, OUTLET CENTER DIM. 125M

CALEFFI:559922A
SKU: CALEFFI:559922A
$779.30
Picture of TWISTFLOW™ RADIANT MANIFOLD ASSEMBLY 7 LOOP 1 INVERTED

TWISTFLOW™ RADIANT MANIFOLD ASSEMBLY 7 LOOP 1 INVERTED

CALEFFI:6686G5S1A IN
SKU: CALEFFI:6686G5S1A IN
$779.52
Picture of BACKFLOW PREVENTER 1-1/4 PRESS ASSE 1013

BACKFLOW PREVENTER 1-1/4 PRESS ASSE 1013

CALEFFI:574706A
SKU: CALEFFI:574706A
$784.56
Picture of RELOAD RESIN 4 BAG BUCKET

RELOAD RESIN 4 BAG BUCKET

CALEFFI:NA570974
SKU: CALEFFI:NA570974
$790.27
Picture of 1 MANIFOLD ASSEMBLY 8 OUTLETS

1 MANIFOLD ASSEMBLY 8 OUTLETS

CALEFFI:6686H5S1A
SKU: CALEFFI:6686H5S1A
$796.54
Picture of BOILER TRIM KIT, 1 1/4 SWEAT, 4.4GAL WITH ASSE 1013 BACK FLO

BOILER TRIM KIT, 1 1/4 SWEAT, 4.4GAL WITH ASSE 1013 BACK FLO

CALEFFI:NA553379R
SKU: CALEFFI:NA553379R
$800.46
Picture of PRESSCAL™ HP PRV HIGH RANGE (90 - 150 PSI) DUAL UNION 1-1/2

PRESSCAL™ HP PRV HIGH RANGE (90 - 150 PSI) DUAL UNION 1-1/2

CALEFFI:536083A 106
SKU: CALEFFI:536083A 106
$805.56
Picture of PRESSCAL™ HP PRV LOW RANGE (10 - 90 PSIG) DUAL UNION 1-1/2 P

PRESSCAL™ HP PRV LOW RANGE (10 - 90 PSIG) DUAL UNION 1-1/2 P

CALEFFI:536084A 106
SKU: CALEFFI:536084A 106
$805.56
Picture of PRESSCAL  PRV ASSE 1003, 2 PRESS

PRESSCAL PRV ASSE 1003, 2 PRESS

CALEFFI:535690HA
SKU: CALEFFI:535690HA
$806.40
Picture of TWISTFLOW™ RADIANT MANIFOLD ASSEMBLY 7 LOOP 1 1/4 INVERTED

TWISTFLOW™ RADIANT MANIFOLD ASSEMBLY 7 LOOP 1 1/4 INVERTED

CALEFFI:6687G5S1A IN
SKU: CALEFFI:6687G5S1A IN
$808.92
Picture of BOILER TRIM KIT, 1 1/4 NPT, 4.4GAL WITH ASSE 1013 BACK FLOW

BOILER TRIM KIT, 1 1/4 NPT, 4.4GAL WITH ASSE 1013 BACK FLOW

CALEFFI:NA553372R
SKU: CALEFFI:NA553372R
$812.22
Picture of SEP 4™ 4-IN-1 UNION 1 1/4 PRESS

SEP 4™ 4-IN-1 UNION 1 1/4 PRESS

CALEFFI:549567A
SKU: CALEFFI:549567A
$813.79
Picture of PRESSCAL  PRV ASSE 1003, 2 PRESS W/ PRESSURE GAUGE

PRESSCAL PRV ASSE 1003, 2 PRESS W/ PRESSURE GAUGE

CALEFFI:535691HA
SKU: CALEFFI:535691HA
$815.64
Picture of CONTECA™ HEAT METER KIT, 0.25 TO 10 GPM, 1/2 SWEAT

CONTECA™ HEAT METER KIT, 0.25 TO 10 GPM, 1/2 SWEAT

CALEFFI:750449A
SKU: CALEFFI:750449A
$817.71
Picture of 1-1/4 MANIFOLD ASSEMBLY 8 OUTLETS

1-1/4 MANIFOLD ASSEMBLY 8 OUTLETS

CALEFFI:6687H5S1A
SKU: CALEFFI:6687H5S1A
$823.20
Picture of CONTECA™ HEAT METER KIT, 0.25 TO 10 GPM, 3/4 SWEAT

CONTECA™ HEAT METER KIT, 0.25 TO 10 GPM, 3/4 SWEAT

CALEFFI:750459A
SKU: CALEFFI:750459A
$827.90
Picture of DUAL-LINE SOLAR PUMP STATION

DUAL-LINE SOLAR PUMP STATION

CALEFFI:279051A
SKU: CALEFFI:279051A
$829.47
Picture of SEP 4™ 4-IN-1 UNION 2 - NO FITTINGS

SEP 4™ 4-IN-1 UNION 2 - NO FITTINGS

CALEFFI:549509US
SKU: CALEFFI:549509US
$834.18