Tekmar

Watts

Caleffi

Legend

Tribal

Grundfos

Axiom

Calefactio

Laars

Webstone

AIC

Nibco

Taco

9-13/16"

10 3/4 in.

1/2 in.

3/4 in.

1/2 in. IPS x Flange

3/4 in. IPS x Flange

1 in. IPS x Flange

1 1/4 in. IPS x Flange

1 1/2 in. IPS x Flange

2 in. IPS x Flange

1/2 in. FIP x MIP x FIP x Hose

1 in. IPS

1 1/4 in. IPS

3/4 in. SWT x Flange

1 in. SWT x Flange

1 1/4 in. SWT x Flange

1 1/2 in. SWT x Flange

2 in. SWT x Flange

3/4 in. SWT x Rotating Flange

1 in. SWT x Rotating Flange

1 1/4 in. SWT x Rotating Flange

1 1/2 in. SWT x Rotating Flange

1 in. x 3/4 in. C×C (1 in. Primary Loop)

1 in. x 1 in. C×C (1 in. Primary Loop)

1 1/4 in. x 3/4 in. C×C (1 1/4 in. Primary Loop)

1 1/4 in. x 1 in. C×C (1 1/4 in. Primary Loop)

1 1/4 in. x 1 1/4 in. C×C (1 1/4 in. Primary Loop)

2 in.

1 1/4 in. IPS x Rotationg Flanges

1 1/2 in. IPS x Rotationg Flanges

1 1/2 in.

1 in.

1 1/4 in.

1-1/4 in.

1-1/2 in.

1 in. SWT

1 1/4 in. SWT

1 in. Union

2.1

4.8

4.7

3.2

Brass

Low Lead Brass

Lead Free* Brass

Forged Brass

Stainless Steel 304 (ASTM A 240)

steel

DZR low-lead brass (<0.25% lead content)

cast iron

Steel FE360

1/2 in. 2 3/8 in.

7-1/4 in.

4-1/2" H x 4-3/4" W x 7/8" D (114 x 120 x 22 mm)

4-1/2" H x 2-7/8" W x 1-1/2" D (73 x 114 x 38 mm)

1-3/4" H x 3-7/16" OD (45 mm H x 87 mm OD)

3-13/16" H x 3-1/2" OD (97 mm H x 89 OD mm)

1-15/16" H x 3-5/32" OD (50 mm H x 80 OD mm)

8-3/16" H x 10-11/16" W x 2-3/8" D (208 x 271 x 60 mm)

3-1/4" W x 2-1/16" L x 1-7/8" H (82 x 54 x 50 mm)

4-3/4" H x 2-7/8 W x 1-7/16" D (121 x 73 x 37 mm)

3" H x 1-9/16" W x 2-3/8" D (75 x 40 x 60 mm)

2-1/8" H x 9/16" W x 9/16" D (54 x 14 x 14 mm)

3/8" OD x 1 1/2" (10 mm OD x 38 mm)

3/16" OD x 1-1/2" (5 mm OD x 38 mm)

6-5/8” H x 7-9/16” W x 2-13/16” D (170 x 193 x 72 mm)

5.5” H x 5.5” W x 2.25” D

4-5/8" H x 3" W x 15/16" D (118 x 76 x 24 mm)

4-3/4" H x 2-7/8" W x 7/8" D (120 x 74 x 22 mm)

2-7/8" H x 2-7/8" W x 13/16" D (73 x 73 x 21 mm)

3-11/16" H x 3" W x 15/16" D (94 x 76 x 24 mm)

5.5" H x 5.5" W x 2.25" D (140 x 140 x 57 mm)

3/8" OD x 3/4" (9.5 OD x 19 mm)

13-3/4" (349 mm) length x 3-5/8" (92.8 mm) dia x 2-13/16" (71 mm) x 3" (76.2 mm) dia

4-3/4" H x 3-15/16" W x 3/16" D (120 x 100 x 4.3 mm)

4" L x 4" W x 5-7/8" H (102 x 102 x 150 mm)

2-5/8" H x 1-9/16" W x 1-11/16" D (67 x 40 x 43 mm)

4-1/2" H x 2-7/8" W x 1/2" D (114 x 73 x 13 mm), 3/16" D (5 mm) when installed

4" W x 8" H x 5" L (100 mm x 203 mm x 127 mm)

4 1/2 in.

5-11/16 in.

3/6 in.

24V AC/DC

24 V (ac) ±10%, 60 Hz, 3 VA min, 99 VA max, Class 2

15 to 30 V (ac/dc), 2 VA, Class 2

120 V (ac) ±10%, 50/60 Hz, 1300 VA

115 V (ac) ±10%, 60 Hz, 20 A

10 to 30 V (ac/dc), 50/60 Hz, 1.8 VA standby, 56 VA max fully loaded, Class 2

24 V (ac) plus / minus 10 percent, 50/60 Hz, 3 VA, 24 V (dc) plus / minus 10 percent, 0.03 A

24 V ±10%, 60 Hz, 2 VA standby, NEC / CEC Class 2

24 V (ac) plus / minus 10 percent, 60 Hz, 100 VA max, Class 2

1 x 115 V

1 x 115 V, ± 10%, 60 Hz

115 V 50/60 Hz

120 V (ac) ± 10%, 60 Hz

115 V (ac) ± 10%, 60 Hz

120 V (ac) ±10%, 60 Hz

24 V (ac) +10%, -20%, 50 Hz 2.7 VA, 60 HZ 2.3 VA

120 V (ac) +10%, -20%, 50 Hz 2.7 VA, 60 HZ 2.3 VA

1 1/2 in. IPS

1 1/2 IPS

1 1/4 in. SWT

1 1/2 in. SWT

1 1/4 in. IPS

1 1/4 IPS

1 in. SWT

1-1/2 in.

1-1/4 in.

1 in.

6 1/2 in

5.31" (135 mm)

6 1/2"

White PVC plastic

Blue PC+ABS plastic

1 in.

3/4 in.

1 1/4 in.

3/4 in.

1 in.

1 1/4 in.

1 1/2 in.

HDPE sleeve, 20 FT (6 m) HDPE jacketed wire

316 stainless steel, 10 FT (3 m) 24 AWG, 300 volt PVC insulated Zipcord

Brass sleeve, 15' (4.6 m) 18 AWG, HDPE jacket, 300 V cable

115 V 50/60 Hz

15 to 30 V (ac/dc), 2 VA, Class 2

24 V (ac) ± 10%, 50/60 Hz, 3.2 VA, NEC / CEC Class 2

10 to 30 V (ac/dc), 50/60 Hz, 1.8 VA, Class 2

120 V via DC plug power supply

Price Range

Products
Heating System Controls

Heating System Controls

Domestic Mixing Valves
Air Separation
Axiom
Boiler Headers
Expansion Tanks
Flow Control
Gauges
Heat Exchanger
Pumps
Pump Station
Thermostats
Zone Controls
Zone Valves
Boiler / DHW Controls
Gateway
Miscellaneous
Mixing Controls
Pump Flanges
Sensors
Setpoint and Pump Controls

Sort By Sort By: Price - High to Low

Featured Newest Arrivals Name (A-Z) Price - Low to High Price - High to Low

551008A

Caleffi Discal Air Separator 1-1/2 in. NPT

$ 307.97

554

Tekmar tekmarNet® Thermostat - One Stage Heat, One Stage Cool, One Fan

$ 307.23

HGTV-60

Calefactio 26 Gallon Heating System Expansion Tank, Floor Standing

$ 303.00

355-436

Legend 6 Branch Boiler Header, 1-1/2 in. X 1 in., 42 in. Long

$ 302.91

H-58744-0

Webstone 1 in. Sweat Run x 1 in. Hydro-Core Flange Right Manifold w/Ball Valves & Drains

$ 299.85

H-48854-44

Webstone 1-1/4 in. x 1 in. Hydro-Core Flange Left Manifold w/Ball Valves & Drains

$ 299.85

H-48754-44

Webstone 1-1/4 in. x 1 in. Hydro-Core Flange Right Manifold w/Ball Valves & Drains

$ 299.85

H-58854-54

Webstone 1 1/4 in. Sweat Run x 1 in. Hydro-Core Flange Left Manifold w/Ball Valves & Drains

$ 299.85

H-58754-54

Webstone 1 1/4 in. Sweat Run x 1 in. Hydro-Core Flange Right Manifold w/Ball Valves & Drains

$ 299.85

132538AFC

Caleffi QuickSetter+ Balancing Valve (low-lead) w/Temp Gauge and Check, 3/4 in. Sweat

$ 294.53

150

Tekmar One Stage Setpoint Control

$ 290.52

552

Tekmar tekmarNet® 4 One Stage Heat Programmable Thermostat

$ 286.21

315

Tekmar tN4 Wiring Center -Six Zone Valves

$ 286.21

170

Tekmar Wifi Setpoint Control - One Stage Heat/Cool

$ 283.92

132438AFC

Caleffi QuickSetter+ Balancing Valve (low-lead) w/Temp Gauge and Check, 1/2 in. Sweat

$ 283.50

355-426

Legend 6 Branch Boiler Header, 1-1/2 in. X 1 in., 42 in. Long

$ 282.14

480

Tekmar tN4 User Switch - Three Inputs

$ 273.81

156

Tekmar Difference Setpoint Control-On / Off

$ 271.12

355-416

Legend 6 Branch Boiler Header, 1-1/4 in. X 1 in., 42 in. Long

$ 270.85

HGTV-40

Calefactio 21 Gallon Heating System Expansion Tank, Floor Standing

$ 270.75

D3499375

.5-4 GPM FlowGuard Flow Setter and Indicator

$ 267.56

355-435

Legend 5 Branch Boiler Header, 1-1/2 in. X 1 in., 35 in. Long

$ 266.32

B911-M3

Bronze Combination Fill Valve and Backflow Preventers

$ 265.61

UPSe 15-58 F

Grundfos UPSe 15-58 F, Cast iron flange

$ 263.55

132554AFC

Caleffi QuickSetter+ Balancing Valve (low-lead) w/Check, 3/4 in. PEX Crimp

$ 257.51

520610AC

Caleffi AngleMix High Flow Angled Thermostatic Mixing Valve, 1 in. MNPT union w/Gauge & Checks

$ 257.25

326

Tekmar Zone Expansion Module - Three Zone Pumps

$ 254.41

SR504-EXP

Taco 4 Zone Switching Relay w/Priority, Expandable

$ 253.57

355-425

Legend 5 Branch Boiler Header, 1-1/2 in. X 1 in., 35 in. Long

$ 251.15

304P

Tekmar Switching Relay Four Zones with Priority

$ 247.40

561

Tekmar WiFi Thermostat 561 - One Stage Heat

$ 244.17

355-406

Legend 6 Branch Boiler Header, 1-1/4 in. X 3/4 in., 42 in. Long

$ 243.50

HGTEV-30

Calefactio 14 Gallon Potable Water System Expansion Tank, Floor Standing

$ 238.50

256

Tekmar Boiler Control - One Stage Boiler

$ 237.70

551007A

Caleffi Discal Air Separator 1-1/4 in. NPT

$ 237.41

H-58655

Webstone 1 1/4 in. x 1 1/4 in. Primary/Secondary Loop Purge Tee

$ 234.63

306V

Tekmar Zone Valve Control Six Zones with Priority

$ 232.31

355-415

Legend 5 Branch Boiler Header, 1-1/4 in. X 1 in., 35 in. Long

$ 226.92

355-405

Legend 5 Branch Boiler Header, 1-1/4 in. X 3/4 in., 35 in. Long

$ 219.56

095

Tekmar Snow Sensor - Aerial Mounting

$ 213.44

H-58654

Webstone 1 1/4 in. x 1 in. Primary/Secondary Loop Purge Tee

$ 211.16

H-58653

Webstone 1-1/4 in. x 3/4 in. Primary/Secondary Loop Purge Tee

$ 211.16

073

Tekmar Slab Sensor - 40' (12 m) wire

$ 208.59

676266A

Caleffi Zone Valve 1 in. Press Fit Twist Top w/ES

$ 204.33

NA10367

Caleffi LegioMix check valve assembly for 1½ in. & 2 in.

$ 203.60

Z56

Caleffi Z-One 2-Way Zone Valve, 1 in. Sweat

$ 202.13

573012A

Caleffi AutoFill Combo (with backflow preventer and pressure gauge) , 1/2 in. NPT

$ 201.39

676269A

Caleffi Zone Valve 1 in. SWT, Twistop end switch

$ 196.98

676268A

Caleffi Zone Valve 1 in. PEX exp, Twistop end switch

$ 196.98

UPS15-58FC

Grundfos SuperBrute 3 Speed Circulator w/Check Valve

$ 192.08

H-50417HV

Webstone 2 in. Sweat ISOLATOR Pump Flange With Drain

$ 190.90

H-40417HV

Webstone 2 in. IPS ISOLATOR Pump Flange With Drain

$ 190.90

NT1-P

Axiom Condensate Neutralizer & Pump - "NeutraPump" Full Kit, 500kBTU/hr, 1.9USG/hr

$ 187.39

304V

Tekmar Zone Valve Control Four Zones with Priority

$ 186.49

573002A

Caleffi AutoFill Combo (with backflow preventer) , 1/2 in. NPT

$ 185.96

676256A

Caleffi Zone Valve 3/4 in. Press Fit Twist Top w/ES

$ 177.87

087

Tekmar Outdoor Sensor

$ 175.71

676259A

Caleffi Zone Valve 3/4 in. SWT, Twistop end switch

$ 172.73

676258A

Caleffi Zone Valve 3/4 in. PEX exp, Twistop end switch

$ 172.73

HGTV-30

Calefactio 13 Gallon Heating System Expansion Tank, Floor Standing

$ 172.13

355-434

Legend 4 Branch Boiler Header, 1-1/2 in. X 1 in., 28 in. Long

$ 169.12

521

Tekmar PID 2 Stage Heat or Heat/Cool Programmable Thermostat w/Floor Sensor (Includes Sensor 079)

$ 166.01

Z55

Caleffi Z-One 2-Way Zone Valve, 3/4 in. Sweat

$ 163.17

551006A

Caleffi Discal Air Separator 1 in. NPT

$ 162.44

005

Tekmar 0 - 135 Ohm Converter

$ 161.70

013

Tekmar 24 V (ac) Transformer 013 - 96 VA, includes Mounting Box

$ 161.16

H-41414KIT

Webstone 1 in. IPS Rotating Pump Flange Install Kit

$ 159.38

086

Tekmar Humidity & Temperature Sensor-Flush Mount

$ 156.85

532

Tekmar tekmarNet® Thermostat - One Stage Heat

$ 151.46

551005A

Caleffi Discal Air Separator 3/4 in. NPT

$ 150.68

H-41414

Webstone 1 IPS ISOLATOR With Multi Function Drain & Rotating Flange

$ 149.03

355-424

Legend 4 Branch Boiler Header, 1-1/2 in. X 3/4 in., 28 in. Long

$ 148.93

009K

Tekmar 24 V (ac) Transformer Kit-includes Mounting Box

$ 143.91

H-50414KIT

Webstone 1 in. Sweat Pump Flange Install Kit

$ 140.63

355-394

Legend 4 Branch Boiler Header, 1 in. X 3/4 in., 28 in. Long

$ 137.86

535051A

Caleffi AutoFill 3/4 in. Union NPT w/ Pressure Gauge (Commercial Applications)

$ 136.71

355-442

Legend 4 Branch Boiler Header, 1-1/4 in. with 3-3/4 in. & 1-1 in. Outlets, 28 in. Long

$ 135.69

H-50407HV

Webstone 2 in. Sweat ISOLATOR Pump Flange

$ 134.09

H-40407HV

Webstone 2 in. IPS ISOLATOR Pump Flange

$ 134.09

355-404

Legend 4 Branch Boiler Header, 1-1/4 in. X 3/4 in., 28 in. Long

$ 133.75

355-414

Legend 4 Branch Boiler Header, 1-1/4 in. X 1 in., 28 in. Long

$ 132.63

H-58644

Webstone 1 in. x 1 in. Primary/Secondary Loop Purge Tee

$ 129.08

H-51416

Webstone 1 1/2 Sweat ISOLATOR With Multi Function Drain & Rotating Flange

$ 127.97

H-40416

Webstone 1 1/2 in. IPS ISOLATOR Pump Flange With Drain

$ 127.97

H-41416

Webstone 1 1/2 IPS ISOLATOR With Multi Function Drain & Rotating Flange

$ 127.22

H-50416

Webstone 1 1/2 in. Sweat ISOLATOR Pump Flange With Drain

$ 127.22

HGT-90

Calefactio 13 Gallon Heating System Expansion Tank

$ 127.13

HGTE-25

Calefactio 8 Gallon Potable Water System Expansion Tank

$ 126.00

553642A

Caleffi AutoFill , 1/2 in. NPT w/ Pressure Gauge

$ 123.48

355-433

Legend 3 Branch Boiler Header, 1-1/2 in. X 1 in., 21 in. Long

$ 122.28

H-43672

Webstone 1/2 in. Pro-Pal E-Tank Service Assembly

$ 121.45

Tekmar Snow Melt Sensor Selection & Installation

072

Tekmar Slab Sensor - 20' (6 m) wire

$ 120.20

519

Tekmar PID Non-Programable Thermostat w/Floor Sensor (518 & 079)

$ 120.20

H-41413KIT

Webstone 3/4 in. IPS Rotating Pump Flange Install Kit

$ 116.39

H-58643

Webstone 1 in. x 3/4 in. Primary/Secondary Loop Purge Tee

$ 116.13

355-423

Legend 3 Branch Boiler Header, 1-1/2 in. X 3/4 in., 21 in. Long

$ 115.45

LF704621

Watts Temperature Gauge, 0°–200°F

$ 112.65

355-413

Legend 3 Branch Boiler Header, 1-1/4 in. X 1 in., 21 in. Long

$ 108.85

518

Tekmar PID Non-Programable Thermostat

$ 105.11

H-41415

Webstone 1 1/4 ISOLATOR With Multi Function Drain & Rotating Flange

$ 101.83

Tekmar

Watts

Caleffi

Legend

Tribal

Grundfos

Axiom

Calefactio

Laars

Webstone

AIC

Nibco

Taco

9-13/16"

10 3/4 in.

1/2 in.

3/4 in.

1/2 in. IPS x Flange

3/4 in. IPS x Flange

1 in. IPS x Flange

1 1/4 in. IPS x Flange

1 1/2 in. IPS x Flange

2 in. IPS x Flange

1/2 in. FIP x MIP x FIP x Hose

1 in. IPS

1 1/4 in. IPS

3/4 in. SWT x Flange

1 in. SWT x Flange

1 1/4 in. SWT x Flange

1 1/2 in. SWT x Flange

2 in. SWT x Flange

3/4 in. SWT x Rotating Flange

1 in. SWT x Rotating Flange

1 1/4 in. SWT x Rotating Flange

1 1/2 in. SWT x Rotating Flange

1 in. x 3/4 in. C×C (1 in. Primary Loop)

1 in. x 1 in. C×C (1 in. Primary Loop)

1 1/4 in. x 3/4 in. C×C (1 1/4 in. Primary Loop)

1 1/4 in. x 1 in. C×C (1 1/4 in. Primary Loop)

1 1/4 in. x 1 1/4 in. C×C (1 1/4 in. Primary Loop)

2 in.

1 1/4 in. IPS x Rotationg Flanges

1 1/2 in. IPS x Rotationg Flanges

1 1/2 in.

1 in.

1 1/4 in.

1-1/4 in.

1-1/2 in.

1 in. SWT

1 1/4 in. SWT

1 in. Union

2.1

4.8

4.7

3.2

Brass

Low Lead Brass

Lead Free* Brass

Forged Brass

Stainless Steel 304 (ASTM A 240)

steel

DZR low-lead brass (<0.25% lead content)

cast iron

Steel FE360

1/2 in. 2 3/8 in.

7-1/4 in.

4-1/2" H x 4-3/4" W x 7/8" D (114 x 120 x 22 mm)

4-1/2" H x 2-7/8" W x 1-1/2" D (73 x 114 x 38 mm)

1-3/4" H x 3-7/16" OD (45 mm H x 87 mm OD)

3-13/16" H x 3-1/2" OD (97 mm H x 89 OD mm)

1-15/16" H x 3-5/32" OD (50 mm H x 80 OD mm)

8-3/16" H x 10-11/16" W x 2-3/8" D (208 x 271 x 60 mm)

3-1/4" W x 2-1/16" L x 1-7/8" H (82 x 54 x 50 mm)

4-3/4" H x 2-7/8 W x 1-7/16" D (121 x 73 x 37 mm)

3" H x 1-9/16" W x 2-3/8" D (75 x 40 x 60 mm)

2-1/8" H x 9/16" W x 9/16" D (54 x 14 x 14 mm)

3/8" OD x 1 1/2" (10 mm OD x 38 mm)

3/16" OD x 1-1/2" (5 mm OD x 38 mm)

6-5/8” H x 7-9/16” W x 2-13/16” D (170 x 193 x 72 mm)

5.5” H x 5.5” W x 2.25” D

4-5/8" H x 3" W x 15/16" D (118 x 76 x 24 mm)

4-3/4" H x 2-7/8" W x 7/8" D (120 x 74 x 22 mm)

2-7/8" H x 2-7/8" W x 13/16" D (73 x 73 x 21 mm)

3-11/16" H x 3" W x 15/16" D (94 x 76 x 24 mm)

5.5" H x 5.5" W x 2.25" D (140 x 140 x 57 mm)

3/8" OD x 3/4" (9.5 OD x 19 mm)

13-3/4" (349 mm) length x 3-5/8" (92.8 mm) dia x 2-13/16" (71 mm) x 3" (76.2 mm) dia

4-3/4" H x 3-15/16" W x 3/16" D (120 x 100 x 4.3 mm)

4" L x 4" W x 5-7/8" H (102 x 102 x 150 mm)

2-5/8" H x 1-9/16" W x 1-11/16" D (67 x 40 x 43 mm)

4-1/2" H x 2-7/8" W x 1/2" D (114 x 73 x 13 mm), 3/16" D (5 mm) when installed

4" W x 8" H x 5" L (100 mm x 203 mm x 127 mm)

4 1/2 in.

5-11/16 in.

3/6 in.

24V AC/DC

24 V (ac) ±10%, 60 Hz, 3 VA min, 99 VA max, Class 2

15 to 30 V (ac/dc), 2 VA, Class 2

120 V (ac) ±10%, 50/60 Hz, 1300 VA

115 V (ac) ±10%, 60 Hz, 20 A

10 to 30 V (ac/dc), 50/60 Hz, 1.8 VA standby, 56 VA max fully loaded, Class 2

24 V (ac) plus / minus 10 percent, 50/60 Hz, 3 VA, 24 V (dc) plus / minus 10 percent, 0.03 A

24 V ±10%, 60 Hz, 2 VA standby, NEC / CEC Class 2

24 V (ac) plus / minus 10 percent, 60 Hz, 100 VA max, Class 2

1 x 115 V

1 x 115 V, ± 10%, 60 Hz

115 V 50/60 Hz

120 V (ac) ± 10%, 60 Hz

115 V (ac) ± 10%, 60 Hz

120 V (ac) ±10%, 60 Hz

24 V (ac) +10%, -20%, 50 Hz 2.7 VA, 60 HZ 2.3 VA

120 V (ac) +10%, -20%, 50 Hz 2.7 VA, 60 HZ 2.3 VA

1 1/2 in. IPS

1 1/2 IPS

1 1/4 in. SWT

1 1/2 in. SWT

1 1/4 in. IPS

1 1/4 IPS

1 in. SWT

1-1/2 in.

1-1/4 in.

1 in.

6 1/2 in

5.31" (135 mm)

6 1/2"

White PVC plastic

Blue PC+ABS plastic

1 in.

3/4 in.

1 1/4 in.

3/4 in.

1 in.

1 1/4 in.

1 1/2 in.

HDPE sleeve, 20 FT (6 m) HDPE jacketed wire

316 stainless steel, 10 FT (3 m) 24 AWG, 300 volt PVC insulated Zipcord

Brass sleeve, 15' (4.6 m) 18 AWG, HDPE jacket, 300 V cable

115 V 50/60 Hz

15 to 30 V (ac/dc), 2 VA, Class 2

24 V (ac) ± 10%, 50/60 Hz, 3.2 VA, NEC / CEC Class 2

10 to 30 V (ac/dc), 50/60 Hz, 1.8 VA, Class 2

120 V via DC plug power supply

Price Range

Clear Filters