Caleffi

On Sale!

Compare

Caleffi 519600A Differential Bypass 1"NPT

Was: $308.64

Now: $190.95

Choose Options
On Sale!

Compare

Caleffi 551007A Discal Air Separator 1 1/4"NPT

Was: $326.42

Now: $202.95

Add to Cart The item has been added
On Sale!

Compare

Caleffi 551006A Discal Air Separator 1"npt

Was: $280.97

Now: $174.42

Add to Cart The item has been added
On Sale!

Compare

Caleffi 519502A Differential Bypass 3/4"npt

Was: $197.88

Now: $122.95

Choose Options
On Sale!

Compare

Caleffi 551004A Discal Air Vent 1/2" FemaleNPT

Was: $138.97

Now: $86.95

Choose Options
On Sale!

Compare

Caleffi 508013A Hygros. Air Vent 1/8"npt Male

Was: $12.76

Now: $7.95

Choose Options
On Sale!

Compare

Caleffi 502720A Air Vent 1/4"NPT w/chk valve

Was: $35.08

Now: $21.95

Choose Options
On Sale!

Compare

Caleffi 502710A Air Vent 1/8"NPT w/chk valve

Was: $33.17

Now: $20.95

Choose Options
On Sale!

Compare

Caleffi 502630 Autom.Air Vent Robocal 3/8" M

Was: $32.52

Now: $20.95

Add to Cart The item has been added
On Sale!

Compare

Caleffi 549597A Hydraulic Separator 1 1/4"swt

Was: $1,228.46

Now: $761.95

Add to Cart The item has been added
On Sale!

Compare

Caleffi 502610A Automatic Air Vent 1/8"NPT M

Was: $23.84

Now: $14.95

Choose Options
On Sale!

Compare

Caleffi 502343A 1/2"NPT Air Vent w/CheckVlve

Was: $68.80

Now: $42.95

Choose Options
On Sale!

Compare

Caleffi 502243A High Capacity 1/2"NPT Air Vent

Was: $58.12

Now: $35.95

Choose Options
On Sale!

Compare

Caleffi 502115A Minical 1/8" with Check

Was: $21.99

Now: $13.63
On Sale!

Compare

Caleffi 502043A AirVent 1/2NPT Hygroscopic Cap

Was: $37.73

Now: $23.95

Choose Options
On Sale!

Compare

Caleffi 502040A Minical Air Vent 1/2"npt

Was: $26.79

Now: $16.95

Choose Options
On Sale!

Compare

Caleffi 502015A Minical 1/8"

Was: $26.79

Now: $16.95

Add to Cart The item has been added
On Sale!

Compare

Caleffi 501502A Hi Capacity Air Vent 3/4"NPT

Was: $416.04

Now: $256.95

Choose Options
On Sale!

Compare

Caleffi 548097A Hydro Sep 1 1/4"swt Union

Was: $856.59

Now: $531.74
On Sale!

Compare

Caleffi 546328A Brass Dirtmag 1"SWT Dirt Sep

Was: $330.70

Now: $205.29
On Sale!

Compare

Caleffi 538202-FD 25V023 Drain Valve 1/4"NPTxGH

Was: $27.00

Now: $16.95
On Sale!

Compare

Caleffi NA10363 PressGage 0-60# 1/4"Lower

Was: $14.90

Now: $9.25
On Sale!

Compare

Caleffi NA10342 Fuse Set Z one Controls 5pcs

Was: $12.94

Now: $8.09
On Sale!

Compare

Caleffi 644369A 3w1"SWT 24V Diverting

Was: $475.28

Now: $297.14
On Sale!

Compare

Caleffi 535351HA 3/4" FNPT Pressure Reducing Valve Hydronic Regulator

Was: $201.00

Now: $124.95

Choose Options
On Sale!

Compare

Caleffi 535059A 3/4"swt Boiler Feed Autofill

Was: $215.18

Now: $132.95

Choose Options
On Sale!

Compare

Caleffi 535051A 3/4"npt Boiler Feed Autofill

Was: $219.90

Now: $135.95

Choose Options
On Sale!

Compare

Caleffi 626600A Flow Switch 1" Mnpt UL Listed

Was: $388.28

Now: $235.95

Choose Options
On Sale!

Compare

Caleffi F69293 Repair Kit

Was: $19.28

Now: $11.96
On Sale!

Compare

Caleffi F59650 Autofill Replacement Cartridge

Was: $46.11

Now: $29.95

Choose Options
On Sale!

Compare

Caleffi ZVR104 Zone Valve Relay 4 Zone

Was: $307.39

Now: $189.95

Choose Options
On Sale!

Compare

Caleffi ZVR103 Zone Valve Relay 3 Zone

Was: $258.94

Now: $159.95

Choose Options
On Sale!

Compare

Caleffi ZSR101 Zone Pump Relay 1 Zone

Was: $155.68

Now: $96.95

Choose Options
On Sale!

Compare

Caleffi Z57 24V NC w/ES 1 1/4"SWT 7.5 Cv

Was: $336.29

Now: $207.95

Choose Options
On Sale!

Compare

Caleffi F39807 Float Mechanism & Cap

Was: $80.16

Now: $49.95

Choose Options
On Sale!

Compare

Caleffi 523188A 1-1/2" Sweat Thermostatic Mixing Valve Hydronic

Was: $2,147.52

Now: $1,326.30
On Sale!

Compare

Caleffi Z55P 3/4"Press 7.5CV 2way 24V NC TB

Was: $250.64

Now: $156.06

Choose Options
On Sale!

Compare

Caleffi 523178A ASSE 1017 Mixing Valve 1-1/4" Sweat Hydronic Mixing Valve

Was: $1,411.96

Now: $873.81
On Sale!

Compare

Caleffi Z55 24V NC w/ES 3/4"SWT 7.5 Cv

Was: $262.47

Now: $162.95

Choose Options
On Sale!

Compare

Caleffi 523177A Mixing Valve ASSE 1017 1-1/4 Sweat Hydronic Mixing Valve

Was: $1,603.14

Now: $986.03
On Sale!

Compare

Caleffi 132772A 1-1/4" NPT Flow Control Valve 19 GPM

Was: $517.71

Now: $319.95

Choose Options
On Sale!

Compare

Caleffi 521619A 3wTherm Mixing Valve 1"SWT

Was: $357.31

Now: $220.95

Choose Options
On Sale!

Compare

Caleffi 132662A 1" NPT Flow Control Valve 10 GPM Hydronic Valve

Was: $389.53

Now: $240.95

Choose Options
On Sale!

Compare

Caleffi Z45P 3/4"Press 7.5CV 2way 24V NC

Was: $306.31

Now: $189.95

Choose Options
On Sale!

Compare

Caleffi Z45 3/4"Sweat 24v 2w Zone Valve

Was: $215.08

Now: $133.51

Add to Cart The item has been added
On Sale!

Compare

Caleffi 521616A 1" Press 3-Way Thermostatic Mixing Valve with Gauge

Was: $315.39

Now: $194.79

Add to Cart The item has been added
On Sale!

Compare

Caleffi Z40F 2Way NC ES 24V IF 3.5CV

Was: $204.69

Now: $126.93
On Sale!

Compare

Caleffi Z40 2Way,NC,ES,24V,IF,3.5CV

Was: $225.08

Now: $139.95

Choose Options
On Sale!

Compare

Caleffi Z307537 3wBody 3/4"SWT 7.5Cv No Lead

Was: $153.13

Now: $94.95

Choose Options
On Sale!

Compare

Caleffi Z307433 3wBody 1/2"SWT 3.5Cv No Lead

Was: $128.89

Now: $79.95

Choose Options
On Sale!

Compare

Caleffi 574050A 3/4" FNPT backflow preventer

Was: $522.16

Now: $324.14
On Sale!

Compare

Caleffi 521519AC 3wTherm Mix Valve 3/4"SWT

Was: $333.19

Now: $206.83

Add to Cart The item has been added
On Sale!

Compare

Caleffi 521519A 3wTherm Mixing Valve 3/4"SWT

Was: $344.06

Now: $212.95

Choose Options
On Sale!

Compare

Caleffi Z300432 3 Way 1/2" Sweat 2.5 Cv 50 psi

Was: $99.68

Now: $61.95

Choose Options
On Sale!

Compare

Caleffi NA502740A Air Vent 1/2"NPT w/chk hygr

Was: $36.57

Now: $22.70
On Sale!

Compare

Caleffi 573503A Backflow Preventer 3/4"npt

Was: $154.42

Now: $95.95

Choose Options
On Sale!

Compare

Caleffi 521516A 3-Way Mixing Valve 3/4" Press Connection with Probe

Was: $278.65

Now: $172.80

Choose Options
On Sale!

Compare

Caleffi 573493A Backflow Prev 1/2"SWT/NPT

Was: $121.76

Now: $76.13

Choose Options
On Sale!

Compare

Caleffi 521509AC Mixing Valve 3/4"swt w/check

Was: $250.64

Now: $156.70
On Sale!

Compare

Caleffi 573403A Backflow Preventer 1/2"npt

Was: $146.77

Now: $90.95

Choose Options
On Sale!

Compare

Caleffi 521509A 3/4" Sweat 3-Way Thermostatic Mixing Valve

Was: $292.04

Now: $180.95

Choose Options
On Sale!

Compare

Caleffi 573100A Replacement Backflow Preventer

Was: $108.21

Now: $67.95

Add to Cart The item has been added
On Sale!

Compare

Caleffi Z207433 2w Body 1/2"SWT 3.5Cv No Lead

Was: $101.81

Now: $62.95

Choose Options
On Sale!

Compare

Caleffi 573016A 1/2"Press BFPx1/2"Press Auto

Was: $361.77

Now: $223.95

Choose Options
On Sale!

Compare

Caleffi 573012A Autofill Combo 1/2"NPT

Was: $251.45

Now: $155.93
On Sale!

Compare

Caleffi 573009A 1/2"swt BFP/Autofill 1/2"npt

Was: $286.12

Now: $176.95

Choose Options
On Sale!

Compare

Caleffi 573006A 1/2"Press BFPx1/2"Press Auto

Was: $249.61

Now: $154.79

Choose Options
On Sale!

Compare

Caleffi 573002A 1/2"NPT x 1/2"NPT BFP/Autofill

Was: $299.13

Now: $184.95

Choose Options
On Sale!

Compare

Caleffi 561402A Discal Check Valve 1/2"npt

Was: $15.51

Now: $9.50
On Sale!

Compare

Caleffi 132432A 1/2" NPT Flow Control Valve 0.51.75 GPM Adjustable

Was: $308.64

Now: $190.95

Choose Options
On Sale!

Compare

Caleffi Z200432 2w Valve Body 1/2"SWT 2.5 Cv

Was: $72.99

Now: $45.95
On Sale!

Compare

Caleffi 553542A 1/2" NPT Automatic Boiler Feed Valve

Was: $192.70

Now: $119.95

Choose Options
On Sale!

Compare

Caleffi Z200043 2w Valve Body Inv.Flare 3.5Cv

Was: $79.63

Now: $49.95

Choose Options
On Sale!

Compare

Caleffi Z151000 Actuator w/end sw NC 24V

Was: $187.60

Now: $115.95

Choose Options
On Sale!

Compare

Caleffi Z146000 Actuator w/o EndSwitch NO 120V

Was: $130.32

Now: $80.48
On Sale!

Compare

Caleffi Z141000 Actuator w/o end switch NO 24V

Was: $182.51

Now: $112.95

Choose Options
On Sale!

Compare

Caleffi Z131000 Actuator w/end switch NO 24V

Was: $197.82

Now: $122.95

Choose Options
On Sale!

Compare

Caleffi Z126000 Actuator w/o EndSwitch NC 120V

Was: $167.18

Now: $103.95

Choose Options
On Sale!

Compare

Caleffi 551067A Air Separator 1 1/4" Press

Was: $491.08

Now: $304.84

Add to Cart The item has been added
On Sale!

Compare

Caleffi Z121000 Actuator w/o End Switch NC 24V

Was: $167.18

Now: $103.95

Choose Options
On Sale!

Compare

Caleffi Z116000 Actuator w/End Switch NC 120V

Was: $179.94

Now: $111.95

Choose Options
On Sale!

Compare

Caleffi 120151A-000 3/4" NPT Y-Strainer with Ball Valve Hydronic Strainer/Isolation Valve

Was: $142.97

Now: $88.75
On Sale!

Compare

Caleffi Z111900 High Current Actuator w/ES 24V

Was: $179.94

Now: $109.95

Choose Options
On Sale!

Compare

Caleffi 551054A 2"swt Discal Air Separator

Was: $493.14

Now: $304.95

Choose Options
On Sale!

Compare

Caleffi 521101A Mixing Valve without fitting

Was: $199.94

Now: $124.12
On Sale!

Compare

Caleffi Z111000 Actuator w/End Switch NC 24V

Was: $179.94

Now: $111.95

Choose Options
On Sale!

Compare

Caleffi 551035A Discal 1 1/4" Sweat

Was: $355.17

Now: $220.48

Add to Cart The item has been added
On Sale!

Compare

Caleffi 520516A 3/4" Press Anglemix w/gauge

Was: $359.40

Now: $221.95

Add to Cart The item has been added
On Sale!

Compare

Caleffi 551028A Discal 1" Sweat

Was: $170.26

Now: $105.15

Choose Options
On Sale!

Compare

Caleffi 519700A Different Bypass 1 1/4"NPT

Was: $372.11

Now: $229.95

Choose Options
On Sale!

Compare

Caleffi 551008A Discal Air Separator 1 1/2"NPT

Was: $423.41

Now: $261.95

Choose Options
On Sale!

Compare

Caleffi 656414 Actuator 24v w/microswit

Was: $166.57

Now: $102.95

Choose Options
On Sale!

Compare

Caleffi 656404 Thermoelectric Actuator 24v

Was: $111.08

Now: $68.77
On Sale!

Compare

Caleffi 656354 Act. 24v w/man.open.&micro

Was: $192.90

Now: $119.95

Choose Options
On Sale!

Compare

Caleffi 645114 Legiomix Actuator 24V

Was: $696.92

Now: $430.95

Choose Options
On Sale!

Compare

Caleffi 59829 Air Vent for Brass Body 3/4 2"

Was: $163.60

Now: $101.95

Choose Options

All prices are in USD. © 2026 1877ForParts.com | Sitemap | All Rights Reserved

Secure Shopping 128 Bit Encryption