Skip to accessibility statement
Free shipping on orders over $99
●
Your Zip:
43230
ORDER STATUS
Your Zip:
43230
HELP
MENU
CONTACT & SUPPORT
Live Chat: Online Now
SIGN IN
0
CART
×
SIGN IN
Shop by Category
Plumbing
Heating
HVAC
Electrical
PEX
Fittings
Valves
Tools
Resources
Our Team
Account
Order History
Returns
Customer Support
Give Us Feedback
Tools
Reorder
Quick Order
Saved Carts
Lists
Resources
PEX Plumbing
PEX Tools
Radiant Heat
Boiler Room
Plumbing Supplies
Air Conditioning
Video Library
Project Calculators
Find Parts For Your Unit
Filter menu expanded
Filters
Hide Filters
5,231 items
Reset
SORT
Top Sellers
Default
Price ▲
Price ▼
Product Availability
–
Show In Stock Only</strong> Filter (2748)
Show
In Stock Only
(2748)
Brand
–
American Standard Filter (1)
American Standard (1)
Amtrol Filter (14)
Amtrol (14)
AO Smith Filter (1)
AO Smith (1)
Apollo Valves Filter (249)
Apollo Valves (249)
Argo Filter (1)
Argo (1)
Armstrong International Filter (4)
Armstrong International (4)
Armstrong Pumps Filter (1)
Armstrong Pumps (1)
Asco Filter (270)
Asco (270)
Asco RedHat Filter (439)
Asco RedHat (439)
Axiom Filter (1)
Axiom (1)
See More
Product Type
–
Accessory Filter (1)
Accessory (1)
Actuator Filter (15)
Actuator (15)
Adapter Kit Filter (2)
Adapter Kit (2)
Adapter Set Filter (12)
Adapter Set (12)
Air Eliminator Filter (186)
Air Eliminator (186)
Air Flow Switch Filter (2)
Air Flow Switch (2)
Air Scoop Filter (17)
Air Scoop (17)
Air Valve Filter (13)
Air Valve (13)
Air Vent Filter (9)
Air Vent (9)
Airtrol Fitting Filter (9)
Airtrol Fitting (9)
See More
Review Score
–
5 Filter (1010)
(1010)
4 Filter (138)
(138)
3 Filter (31)
(31)
2 Filter (7)
(7)
1 Filter (9)
(9)
Price Range
–
Under $1 Filter (2)
Under $1 (2)
$1 to $5 Filter (27)
$1 to $5 (27)
$5 to $10 Filter (28)
$5 to $10 (28)
$10 to $15 Filter (62)
$10 to $15 (62)
$15 to $20 Filter (88)
$15 to $20 (88)
$20 to $25 Filter (79)
$20 to $25 (79)
$25 to $30 Filter (34)
$25 to $30 (34)
$30 to $35 Filter (45)
$30 to $35 (45)
$35 to $40 Filter (55)
$35 to $40 (55)
$40 to $45 Filter (57)
$40 to $45 (57)
See More
Home
Heating Supplies & Parts
Relief Valves
Hydronic Valves, Controls & Parts
Hydronic Valves, Controls & Parts
5231 items
FILTER
Grid
List
Sort: Top Sellers
H0V1B312T171 Compare Checkbox
Compare
Proof of Closure 2-Way General Purpose Oil Hydramotor Actuator with Auxiliary Switch, 6 Cv (120V)
SKU:
H0V1B312T171
Asco RedHat
SKU:
H0V1B312T171
Brand:
Asco RedHat
–
+
$6,503.36
each
ADD TO CART
Add to List
Backorder
Get it by
Mon, Oct 19 - Mon, Nov 16
Backorder
Get it by
Mon, Oct 19 - Mon, Nov 16
Add to List
551795A Compare Checkbox
Compare
3/4" Sweat Discal Vertical Pipes Air Separator, 8 GPM
SKU:
551795A
Caleffi
SKU:
551795A
Brand:
Caleffi
–
+
$194.91
each
ADD TO CART
Add to List
In Stock
Get 4 by
Wed, Sep 23
In Stock
Get 4 by
Wed, Sep 23
Add to List
EF8210G56 Compare Checkbox
Compare
1-1/2" NPT Normally Closed 2-Way Solenoid Valve, 22.5 CV (120v)
SKU:
EF8210G56
Asco RedHat
SKU:
EF8210G56
Brand:
Asco RedHat
–
+
$985.11
each
ADD TO CART
Add to List
In Stock
Get 1 by
Tue, Sep 22
In Stock
Get 1 by
Tue, Sep 22
Add to List
262XBRBODY Compare Checkbox
Compare
1/2" Universal Rapid Install Temptrol Pressure Balancing Tub and Shower Valve Body With Easy Service Stops
SKU:
262XBRBODY
Symmons
SKU:
262XBRBODY
Brand:
Symmons
(1)
–
+
$130.73
each
ADD TO CART
Add to List
Backorder
Get it by
Mon, Oct 19 - Mon, Nov 16
Backorder
Get it by
Mon, Oct 19 - Mon, Nov 16
Add to List
34-20XLC Compare Checkbox
Compare
3/4" Female Copper Sweat Union 20XL Pressure Reducing Valve (LF)
SKU:
34-20XLC
Zurn
SKU:
34-20XLC
Brand:
Zurn
–
+
$159.99
each
ADD TO CART
Add to List
Backorder
Get it by
Mon, Oct 19 - Mon, Nov 16
Backorder
Get it by
Mon, Oct 19 - Mon, Nov 16
Add to List
1786 Compare Checkbox
Compare
Check Bonnet
SKU:
1786
Leonard
SKU:
1786
Brand:
Leonard
–
+
$69.05
each
ADD TO CART
Add to List
Out of Stock
Get it by
Mon, Sep 28 - Mon, Oct 5
Out of Stock
Get it by
Mon, Sep 28 - Mon, Oct 5
Add to List
34E24O2-R1021E Compare Checkbox
Compare
2-1/8" ODF Normally Open Secondary Coolant Valve (22.5 Cv)
SKU:
34E24O2-R1021E
Parker Hannifin
SKU:
34E24O2-R1021E
Brand:
Parker Hannifin
–
+
$1,423.79
each
ADD TO CART
Add to List
Backorder
Get it by
Mon, Oct 19 - Mon, Nov 16
Backorder
Get it by
Mon, Oct 19 - Mon, Nov 16
Add to List
CT300 Compare Checkbox
Compare
Cleaning Tool for Tempering Valve
SKU:
CT300
Holby
SKU:
CT300
Brand:
Holby
–
+
$188.41
each
ADD TO CART
Add to List
In Stock
Get 2 by
Mon, Sep 21
In Stock
Get 2 by
Mon, Sep 21
Add to List
216758-041-D Compare Checkbox
Compare
16.7 Watt HB Coil (120v)
SKU:
216758-041-D
Asco
SKU:
216758-041-D
Brand:
Asco
–
+
$326.35
each
ADD TO CART
Add to List
Backorder
Get it by
Mon, Oct 19 - Mon, Nov 16
Backorder
Get it by
Mon, Oct 19 - Mon, Nov 16
Add to List
380817P Compare Checkbox
Compare
RK4201 Repair Kit for R42 Series NC Refrigeration Solenoid Valves
SKU:
380817P
Parker Hannifin
SKU:
380817P
Brand:
Parker Hannifin
–
+
$240.95
each
ADD TO CART
Add to List
Backorder
Get it by
Mon, Oct 19 - Mon, Nov 16
Backorder
Get it by
Mon, Oct 19 - Mon, Nov 16
Add to List
0009411 Compare Checkbox
Compare
1-1/2" LF25AUB-Z3 Pressure Reducing Valve, 75-125 PSI, Lead Free (Threaded F Union Inlet x NPT Threaded F Outlet)
SKU:
0009411
Watts
SKU:
0009411
Brand:
Watts
–
+
$2,097.79
each
ADD TO CART
Add to List
Backorder
Get it by
Mon, Oct 19 - Mon, Nov 16
Backorder
Get it by
Mon, Oct 19 - Mon, Nov 16
Add to List
NA548052A Compare Checkbox
Compare
2" ANSI Flange Hydro Separator, 60 GPM
SKU:
NA548052A
Caleffi
SKU:
NA548052A
Brand:
Caleffi
–
+
$4,039.16
each
ADD TO CART
Add to List
Backorder
Get it by
Tue, Oct 20 - Thu, Nov 19
Backorder
Get it by
Tue, Oct 20 - Thu, Nov 19
Add to List
H-75272W Compare Checkbox
Compare
1/2" Sweat Thermostatic Mixing Valve w/ Check Valve, For High Temp (Lead Free)
SKU:
H-75272W
Webstone
SKU:
H-75272W
Brand:
Webstone
–
+
$167.38
each
ADD TO CART
Add to List
In Stock
Get 1 by
Wed, Sep 23 - Thu, Sep 24
In Stock
Get 1 by
Wed, Sep 23 - Thu, Sep 24
Add to List
034L0023 Compare Checkbox
Compare
1/2" ODF KVP12 Pressure Regulator with Access Port
SKU:
034L0023
Danfoss
SKU:
034L0023
Brand:
Danfoss
–
+
$181.83
each
ADD TO CART
Add to List
Backorder
Get it by
Mon, Oct 19 - Mon, Nov 16
Backorder
Get it by
Mon, Oct 19 - Mon, Nov 16
Add to List
RMA-150 Compare Checkbox
Compare
10/100 CC/Min RMA Air Flowmeter, No Valve, +/-8% Accuracy
SKU:
RMA-150
Dwyer
SKU:
RMA-150
Brand:
Dwyer
–
+
$92.07
each
ADD TO CART
Add to List
Backorder
Get it by
Mon, Oct 19 - Mon, Nov 16
Backorder
Get it by
Mon, Oct 19 - Mon, Nov 16
Add to List
THT600-FA Compare Checkbox
Compare
6" Spirotrap THT High Velocity Dirt Separators (Flanged)
SKU:
THT600-FA
Spirotherm
SKU:
THT600-FA
Brand:
Spirotherm
–
+
$13,340.59
each
ADD TO CART
Add to List
Out of Stock
Get it by
Tue, Oct 6 - Thu, Oct 15
Out of Stock
Get it by
Tue, Oct 6 - Thu, Oct 15
Add to List
0298546 Compare Checkbox
Compare
1" LF223S Lead Free High Capacity Pressure Valve w/ Strainer
SKU:
0298546
Watts
SKU:
0298546
Brand:
Watts
–
+
$2,119.64
each
ADD TO CART
Add to List
Backorder
Get it by
Mon, Oct 19 - Mon, Nov 16
Backorder
Get it by
Mon, Oct 19 - Mon, Nov 16
Add to List
RMB-53-SSV Compare Checkbox
Compare
10/100 SCFH RMB Air Flowmeter, Stainless Steel Valve
SKU:
RMB-53-SSV
Dwyer
SKU:
RMB-53-SSV
Brand:
Dwyer
–
+
$102.77
each
ADD TO CART
Add to List
Backorder
Get it by
Mon, Oct 19 - Mon, Nov 16
Backorder
Get it by
Mon, Oct 19 - Mon, Nov 16
Add to List
EF8263H118T-24VDC Compare Checkbox
Compare
3/8" 0-101# Normally-Closed Explosion-Proof Solenoid Valve (24 VDC)
SKU:
EF8263H118T-24VDC
Asco RedHat
SKU:
EF8263H118T-24VDC
Brand:
Asco RedHat
–
+
$360.14
each
ADD TO CART
Add to List
Backorder
Get it by
Mon, Oct 19 - Mon, Nov 16
Backorder
Get it by
Mon, Oct 19 - Mon, Nov 16
Add to List
RMC-105-SSV Compare Checkbox
Compare
60/600 SCFH RMC Air Flowmeter, Stainless Steel Valve
SKU:
RMC-105-SSV
Dwyer
SKU:
RMC-105-SSV
Brand:
Dwyer
–
+
$248.57
each
ADD TO CART
Add to List
Backorder
Get it by
Mon, Oct 19 - Mon, Nov 16
Backorder
Get it by
Mon, Oct 19 - Mon, Nov 16
Add to List
VB-7263-0-4-1 Compare Checkbox
Compare
1/2" Steam Valve, Suc, 0.4 Cv, VB-7263-0-4-1
SKU:
VB-7263-0-4-1
Barber Colman
SKU:
VB-7263-0-4-1
Brand:
Barber Colman
–
+
$269.47
each
ADD TO CART
Add to List
In Stock
Get 2 by
Tue, Sep 22
In Stock
Get 2 by
Tue, Sep 22
Add to List
034L0147 Compare Checkbox
Compare
5/8" ODF KVC15 Hot Gas Pressure Regulator
SKU:
034L0147
Danfoss
SKU:
034L0147
Brand:
Danfoss
–
+
$189.87
each
ADD TO CART
Add to List
Backorder
Get it by
Mon, Oct 19 - Mon, Nov 16
Backorder
Get it by
Mon, Oct 19 - Mon, Nov 16
Add to List
114-600XLC Compare Checkbox
Compare
1-1/4" 600XL Copper Sweat x Sweat Pressure Reducing Valve w/ Copper Sweat Connection (LF)
SKU:
114-600XLC
Zurn
SKU:
114-600XLC
Brand:
Zurn
–
+
$869.03
each
ADD TO CART
Add to List
In Stock
Get 1 by
Tue, Sep 22
Total Available: 6
In Stock
Get 1 by
Tue, Sep 22
Total Available: 6
Add to List
903063P Compare Checkbox
Compare
LAC-10-100 1-3/8" x 1-1/8" x 1-1/8" ODF Head Pressure Control Valve (100 psi)
SKU:
903063P
Parker Hannifin
SKU:
903063P
Brand:
Parker Hannifin
–
+
$1,117.00
each
ADD TO CART
Add to List
Backorder
Get it by
Mon, Oct 19 - Mon, Nov 16
Backorder
Get it by
Mon, Oct 19 - Mon, Nov 16
Add to List
SP12574E Compare Checkbox
Compare
Temperature and Pressure Relief Valve (T&P), SP12574E
SKU:
SP12574E
Rheem
SKU:
SP12574E
Brand:
Rheem
–
+
$53.30
each
ADD TO CART
Add to List
Backorder
Get it by
Mon, Oct 19 - Mon, Nov 16
Backorder
Get it by
Mon, Oct 19 - Mon, Nov 16
Add to List
L8-WP Compare Checkbox
Compare
Liquid Level Switch w/ Weatherproof Enclosure
SKU:
L8-WP
Dwyer
SKU:
L8-WP
Brand:
Dwyer
–
+
$198.52
each
ADD TO CART
Add to List
In Stock
Get 1 by
Wed, Sep 23
In Stock
Get 1 by
Wed, Sep 23
Add to List
HOLBY1000LT Compare Checkbox
Compare
1" Bronze Thermostatic Tempering Valve (Low Temp)
SKU:
HOLBY1000LT
Holby
SKU:
HOLBY1000LT
Brand:
Holby
(1)
–
+
$959.07
each
ADD TO CART
Add to List
Backorder
Get it by
Mon, Oct 19 - Mon, Nov 16
Backorder
Get it by
Mon, Oct 19 - Mon, Nov 16
Add to List
34-NR3XLP Compare Checkbox
Compare
3/4" Lead Free FNPT Pressure Reducing Valve, Tapped & Plugged for Gauge
SKU:
34-NR3XLP
Zurn
SKU:
34-NR3XLP
Brand:
Zurn
–
+
$252.99
each
ADD TO CART
Add to List
Backorder
Get it by
Mon, Oct 19 - Mon, Nov 16
Backorder
Get it by
Mon, Oct 19 - Mon, Nov 16
Add to List
323-478 Compare Checkbox
Compare
Valve Repair Kit, 323-478
SKU:
323-478
Asco
SKU:
323-478
Brand:
Asco
–
+
$576.47
each
ADD TO CART
Add to List
Backorder
Get it by
Mon, Oct 19 - Mon, Nov 16
Backorder
Get it by
Mon, Oct 19 - Mon, Nov 16
Add to List
311931P Compare Checkbox
Compare
PKC-2-24DC Solenoid Coil for Normally Closed Refrigeration Solenoid Valves (24 VDC)
SKU:
311931P
Parker Hannifin
SKU:
311931P
Brand:
Parker Hannifin
–
+
$162.83
each
ADD TO CART
Add to List
Backorder
Get it by
Mon, Oct 19 - Mon, Nov 16
Backorder
Get it by
Mon, Oct 19 - Mon, Nov 16
Add to List
5123-B2-G Compare Checkbox
Compare
3/4" CPVC Union 5123 Mixing Valve w/ Gauge (Low Lead)
SKU:
5123-B2-G
Taco
SKU:
5123-B2-G
Brand:
Taco
–
+
$207.11
each
ADD TO CART
Add to List
Backorder
Get it by
Mon, Oct 19 - Mon, Nov 16
Backorder
Get it by
Mon, Oct 19 - Mon, Nov 16
Add to List
181325 Compare Checkbox
Compare
250-3/4-36, Relief Valve 3/4" NPT, 36 psi (2.5 kg/cm2)
SKU:
181325
McDonnell & Miller
SKU:
181325
Brand:
McDonnell & Miller
–
+
$164.35
each
ADD TO CART
Add to List
Backorder
Get it by
Mon, Oct 19 - Mon, Nov 16
Backorder
Get it by
Mon, Oct 19 - Mon, Nov 16
Add to List
V46BS-4C Compare Checkbox
Compare
2" Maritime V46 Series Pressure Actuated Water-Regulating Valve (160-260 PSI)
SKU:
V46BS-4C
Johnson Controls
SKU:
V46BS-4C
Brand:
Johnson Controls
(1)
–
+
$3,799.96
each
ADD TO CART
Add to List
Backorder
Get it by
Mon, Oct 19 - Mon, Nov 16
Backorder
Get it by
Mon, Oct 19 - Mon, Nov 16
Add to List
AF4C05-R1021 Compare Checkbox
Compare
120V Coil for 34E24C2-R1021E Normally Closed Secondary Coolant Valves
SKU:
AF4C05-R1021
Parker Hannifin
SKU:
AF4C05-R1021
Brand:
Parker Hannifin
–
+
$353.85
each
ADD TO CART
Add to List
Backorder
Get it by
Mon, Oct 19 - Mon, Nov 16
Backorder
Get it by
Mon, Oct 19 - Mon, Nov 16
Add to List
304-691 Compare Checkbox
Compare
Valve Repair Kit for 8215 AC Series
SKU:
304-691
Asco
SKU:
304-691
Brand:
Asco
–
+
$568.37
each
ADD TO CART
Add to List
In Stock
Get 1 by
Tue, Sep 22
In Stock
Get 1 by
Tue, Sep 22
Add to List
36H20401 Compare Checkbox
Compare
3/4" PRH High Capacity Pressure Reducing Valve
SKU:
36H20401
Apollo Valves
SKU:
36H20401
Brand:
Apollo Valves
–
+
$360.34
each
ADD TO CART
Add to List
Backorder
Get it by
Mon, Oct 19 - Mon, Nov 16
Backorder
Get it by
Mon, Oct 19 - Mon, Nov 16
Add to List
268-03058 Compare Checkbox
Compare
3/4" 2-Way N/O Stainless Steel Mixing Valve Actuator, High Temp Packing, Female x Female, 8" 3-8 psi (6.3 Cv)
SKU:
268-03058
Siemens
SKU:
268-03058
Brand:
Siemens
–
+
$422.15
each
ADD TO CART
Add to List
Backorder
Get it by
Mon, Oct 19 - Mon, Nov 16
Backorder
Get it by
Mon, Oct 19 - Mon, Nov 16
Add to List
HOL2000-SCREW Compare Checkbox
Compare
Screw for 2" Holby Tempering Valve
SKU:
HOL2000-SCREW
Holby
SKU:
HOL2000-SCREW
Brand:
Holby
–
+
$100.39
each
ADD TO CART
Add to List
Backorder
Get it by
Mon, Oct 19 - Mon, Nov 16
Backorder
Get it by
Mon, Oct 19 - Mon, Nov 16
Add to List
901180P Compare Checkbox
Compare
ORIT-6 7/8" ODF Evaporator Pressure Regulator (30 to 100 psi)
SKU:
901180P
Parker Hannifin
SKU:
901180P
Brand:
Parker Hannifin
–
+
$410.41
each
ADD TO CART
Add to List
Backorder
Get it by
Mon, Oct 19 - Mon, Nov 16
Backorder
Get it by
Mon, Oct 19 - Mon, Nov 16
Add to List
600125 Compare Checkbox
Compare
Thermostatic Rebuild Kit for TV21-H (1-1/4" to 2")
SKU:
600125
Hoffman
SKU:
600125
Brand:
Hoffman
–
+
$392.63
each
ADD TO CART
Add to List
Backorder
Get it by
Mon, Oct 19 - Mon, Nov 16
Backorder
Get it by
Mon, Oct 19 - Mon, Nov 16
Add to List
12-TPKXL Compare Checkbox
Compare
1/2" FNPT Tailpiece Kit for 600XL
SKU:
12-TPKXL
Zurn
SKU:
12-TPKXL
Brand:
Zurn
–
+
$37.97
each
ADD TO CART
Add to List
Backorder
Get it by
Mon, Oct 19 - Mon, Nov 16
Backorder
Get it by
Mon, Oct 19 - Mon, Nov 16
Add to List
VFA-24 Compare Checkbox
Compare
1/10 LPM VFA Air Flowmeter, No Valve
SKU:
VFA-24
Dwyer
SKU:
VFA-24
Brand:
Dwyer
–
+
$52.13
each
ADD TO CART
Add to List
Backorder
Get it by
Mon, Oct 19 - Mon, Nov 16
Backorder
Get it by
Mon, Oct 19 - Mon, Nov 16
Add to List
R51838 Compare Checkbox
Compare
2-1/2" Union Nut
SKU:
R51838
Caleffi
SKU:
R51838
Brand:
Caleffi
–
+
$37.49
each
ADD TO CART
Add to List
Out of Stock
Get it by
Mon, Oct 5 - Mon, Oct 12
Out of Stock
Get it by
Mon, Oct 5 - Mon, Oct 12
Add to List
F121513 Compare Checkbox
Compare
1-1/4" LF174A Lead Free Relief Valve w/ Flood Sensor Connectivity (50 psi)
SKU:
F121513
Watts
SKU:
F121513
Brand:
Watts
–
+
$1,430.27
each
ADD TO CART
Add to List
Backorder
Get it by
Mon, Oct 19 - Mon, Nov 16
Backorder
Get it by
Mon, Oct 19 - Mon, Nov 16
Add to List
41788-CST Compare Checkbox
Compare
1-1/2" Sweat Low Lead Tail Piece
SKU:
41788-CST
Caleffi
SKU:
41788-CST
Brand:
Caleffi
–
+
$46.90
each
ADD TO CART
Add to List
Backorder
Get it by
Mon, Oct 19 - Mon, Nov 16
Backorder
Get it by
Mon, Oct 19 - Mon, Nov 16
Add to List
H-72263W Compare Checkbox
Compare
3/4" Female NPT Solar Thermostatic Mixing Valve w/ Check Valve (Lead Free)
SKU:
H-72263W
Webstone
SKU:
H-72263W
Brand:
Webstone
–
+
$150.59
each
ADD TO CART
Add to List
In Stock
Get 1 by
Wed, Sep 23 - Thu, Sep 24
In Stock
Get 1 by
Wed, Sep 23 - Thu, Sep 24
Add to List
7836001 Compare Checkbox
Compare
Limit Switch Kit
SKU:
7836001
Apollo Valves
SKU:
7836001
Brand:
Apollo Valves
–
+
$154.13
each
ADD TO CART
Add to List
Backorder
Get it by
Mon, Oct 19 - Mon, Nov 16
Backorder
Get it by
Mon, Oct 19 - Mon, Nov 16
Add to List
MBP-AL-100F100F07.00 Compare Checkbox
Compare
1" FNPT AL Low Lead Automatic Flow Control Balancing Valve (7.00 GPM)
SKU:
MBP-AL-100F100F07.00
Macon Balancing
SKU:
MBP-AL-100F100F07.00
Brand:
Macon Balancing
–
+
$207.16
each
ADD TO CART
Add to List
Backorder
Get it by
Mon, Oct 19 - Mon, Nov 16
Backorder
Get it by
Mon, Oct 19 - Mon, Nov 16
Add to List
1
...
77
78
79
...
109
Refresh
×
Video