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
5,779 items
Reset
SORT
Top Sellers
Default
Price ▲
Price ▼
Product Availability
–
Show In Stock Only</strong> Filter (715)
Show
In Stock Only
(715)
Category
–
AO Smith (45)
Bosch (1420)
Eemax (106)
Noritz (806)
Rheem (481)
Rinnai (2321)
Stiebel Eltron (71)
Takagi (540)
Laars (3)
Craftsman (6)
Product Type
–
Adapter Filter (1)
Adapter (1)
Adaptor Filter (1)
Adaptor (1)
Aerator Filter (2)
Aerator (2)
Anode Rod Filter (1)
Anode Rod (1)
Assembly Filter (3)
Assembly (3)
Bracket Filter (5)
Bracket (5)
Burner Filter (1)
Burner (1)
Burner Assembly Filter (5)
Burner Assembly (5)
Button Filter (1)
Button (1)
Button Kit Filter (1)
Button Kit (1)
See More
Review Score
–
5 Filter (297)
(297)
4 Filter (31)
(31)
3 Filter (6)
(6)
2 Filter (1)
(1)
1 Filter (4)
(4)
Price Range
–
Under $1 Filter (141)
Under $1 (141)
$1 to $5 Filter (518)
$1 to $5 (518)
$5 to $10 Filter (787)
$5 to $10 (787)
$10 to $15 Filter (494)
$10 to $15 (494)
$15 to $20 Filter (400)
$15 to $20 (400)
$20 to $25 Filter (309)
$20 to $25 (309)
$25 to $30 Filter (328)
$25 to $30 (328)
$30 to $35 Filter (208)
$30 to $35 (208)
$35 to $40 Filter (162)
$35 to $40 (162)
$40 to $45 Filter (145)
$40 to $45 (145)
See More
Home
Plumbing Supplies
Water Heater Parts
Tankless Replacement Parts
Tankless Replacement Parts
Need a little help?
View our Resources
5779 items
FILTER
Grid
List
Sort: Top Sellers
104000225 Compare Checkbox
Compare
LP Gas Conversion Kit for V65i (VC), 104000225
SKU:
104000225
Rinnai
SKU:
104000225
Brand:
Rinnai
–
+
$60.84
each
ADD TO CART
Add to List
In Stock
Get 1 by
Tue, Aug 18
Total Available: 4
In Stock
Get 1 by
Tue, Aug 18
Total Available: 4
Add to List
87004000320 Compare Checkbox
Compare
Flue Gas Limiter, 87004000320
SKU:
87004000320
Bosch
SKU:
87004000320
Brand:
Bosch
(3)
–
+
$44.80
each
ADD TO CART
Add to List
In Stock
Get 5 by
Tue, Aug 18
Total Available: 11
In Stock
Get 5 by
Tue, Aug 18
Total Available: 11
Add to List
109000281 Compare Checkbox
Compare
Wall Bracket for RL75, RL94e (VC), 109000281
SKU:
109000281
Rinnai
SKU:
109000281
Brand:
Rinnai
–
+
$7.34
each
ADD TO CART
Add to List
In Stock
Get 3 by
Tue, Aug 18
Total Available: 5
In Stock
Get 3 by
Tue, Aug 18
Total Available: 5
Add to List
ZQAA0514UK Compare Checkbox
Compare
Screw, ZQAA0514UK
SKU:
ZQAA0514UK
Rinnai
SKU:
ZQAA0514UK
Brand:
Rinnai
–
+
$0.80
each
ADD TO CART
Add to List
In Stock
Get 4 by
Wed, Aug 19
Total Available: 8
In Stock
Get 4 by
Wed, Aug 19
Total Available: 8
Add to List
109000244 Compare Checkbox
Compare
Clip, 109000244
SKU:
109000244
Rinnai
SKU:
109000244
Brand:
Rinnai
–
+
$6.66
each
ADD TO CART
Add to List
In Stock
Get 1 by
Tue, Aug 18
Total Available: 3
In Stock
Get 1 by
Tue, Aug 18
Total Available: 3
Add to List
105000039 Compare Checkbox
Compare
Thermal Fuse Harness Assembly for R75 & R94, 105000039
SKU:
105000039
Rinnai
SKU:
105000039
Brand:
Rinnai
–
+
$71.27
each
ADD TO CART
Add to List
In Stock
Get 3 by
Tue, Aug 18
Total Available: 7
In Stock
Get 3 by
Tue, Aug 18
Total Available: 7
Add to List
U245-409 Compare Checkbox
Compare
Connecting Joint for V2532FFU, U245-409
SKU:
U245-409
Rinnai
SKU:
U245-409
Brand:
Rinnai
(2)
–
+
$15.76
each
ADD TO CART
Add to List
In Stock
Get 1 by
Tue, Aug 18
Total Available: 4
In Stock
Get 1 by
Tue, Aug 18
Total Available: 4
Add to List
AH66-393 Compare Checkbox
Compare
Electrode Holder, AH66-393
SKU:
AH66-393
Rinnai
SKU:
AH66-393
Brand:
Rinnai
(2)
–
+
$5.89
each
ADD TO CART
Add to List
In Stock
Get 3 by
Tue, Aug 18
Total Available: 6
In Stock
Get 3 by
Tue, Aug 18
Total Available: 6
Add to List
100076305 Compare Checkbox
Compare
O-Ring FKM, 100076305
SKU:
100076305
AO Smith
SKU:
100076305
Brand:
AO Smith
(1)
–
+
$7.16
each
ADD TO CART
Add to List
In Stock
Get 1 by
Tue, Aug 18
Total Available: 7
In Stock
Get 1 by
Tue, Aug 18
Total Available: 7
Add to List
SAD6593 Compare Checkbox
Compare
"C" Clamp - Water Pipe 16-25, SAD6593
SKU:
SAD6593
Noritz
SKU:
SAD6593
Brand:
Noritz
–
+
$2.50
each
ADD TO CART
Add to List
In Stock
Get 1 by
Wed, Aug 19
Total Available: 8
In Stock
Get 1 by
Wed, Aug 19
Total Available: 8
Add to List
104000010 Compare Checkbox
Compare
Electrode, Flame Rod, & Gasket Kit, 104000010
SKU:
104000010
Rinnai
SKU:
104000010
Brand:
Rinnai
(1)
–
+
$45.31
each
ADD TO CART
Add to List
In Stock
Get 3 by
Fri, Aug 21
In Stock
Get 3 by
Fri, Aug 21
Add to List
AH69-310 Compare Checkbox
Compare
Stop Bracket, AH69-310
SKU:
AH69-310
Rinnai
SKU:
AH69-310
Brand:
Rinnai
–
+
$6.51
each
ADD TO CART
Add to List
In Stock
Get 4 by
Fri, Aug 21
In Stock
Get 4 by
Fri, Aug 21
Add to List
SBA7506-B Compare Checkbox
Compare
Flame Rod w/ Gasket, SBA7506-B
SKU:
SBA7506-B
Noritz
SKU:
SBA7506-B
Brand:
Noritz
–
+
$11.72
each
ADD TO CART
Add to List
In Stock
Get 1 by
Tue, Aug 18
Total Available: 9
In Stock
Get 1 by
Tue, Aug 18
Total Available: 9
Add to List
104000222 Compare Checkbox
Compare
NG to LP Conversion Kit for RL94e-VC, 104000222
SKU:
104000222
Rinnai
SKU:
104000222
Brand:
Rinnai
(1)
–
+
$87.29
each
ADD TO CART
Add to List
In Stock
Get 2 by
Tue, Aug 18
Total Available: 6
In Stock
Get 2 by
Tue, Aug 18
Total Available: 6
Add to List
REU-MSB-M Compare Checkbox
Compare
Control Kit for Multi Unit Control of Tankless Water Heaters, REU-MSB-M
SKU:
REU-MSB-M
Rinnai
SKU:
REU-MSB-M
Brand:
Rinnai
–
+
$237.70
each
ADD TO CART
Add to List
In Stock
Get 3 by
Tue, Aug 18
Total Available: 12
In Stock
Get 3 by
Tue, Aug 18
Total Available: 12
Add to List
109000233 Compare Checkbox
Compare
Gasket, 109000233
SKU:
109000233
Rinnai
SKU:
109000233
Brand:
Rinnai
–
+
$9.66
each
ADD TO CART
Add to List
In Stock
Get 8 by
Tue, Aug 18
Total Available: 16
In Stock
Get 8 by
Tue, Aug 18
Total Available: 16
Add to List
109000453 Compare Checkbox
Compare
Bypass Plug, 109000453
SKU:
109000453
Rinnai
SKU:
109000453
Brand:
Rinnai
–
+
$6.34
each
ADD TO CART
Add to List
In Stock
Get 2 by
Tue, Aug 18
Total Available: 4
In Stock
Get 2 by
Tue, Aug 18
Total Available: 4
Add to List
100074346 Compare Checkbox
Compare
Heat Exchanger Assembly (T-KJr2-IN), 100074346
SKU:
100074346
Takagi
SKU:
100074346
Brand:
Takagi
(1)
–
+
$357.66
each
ADD TO CART
Add to List
In Stock
Get 2 by
Tue, Aug 18
Total Available: 10
In Stock
Get 2 by
Tue, Aug 18
Total Available: 10
Add to List
554F-147 Compare Checkbox
Compare
Electrode Packing, 554F-147
SKU:
554F-147
Rinnai
SKU:
554F-147
Brand:
Rinnai
–
+
$0.94
each
ADD TO CART
Add to List
In Stock
Get 6 by
Tue, Aug 18
Total Available: 12
In Stock
Get 6 by
Tue, Aug 18
Total Available: 12
Add to List
107000095 Compare Checkbox
Compare
Connecting Pipe - Heat Exchanger, 107000095
SKU:
107000095
Rinnai
SKU:
107000095
Brand:
Rinnai
(1)
–
+
$47.29
each
ADD TO CART
Add to List
In Stock
Get 1 by
Fri, Aug 21
In Stock
Get 1 by
Fri, Aug 21
Add to List
107000316 Compare Checkbox
Compare
3/4 Water Supply Connection, 107000316
SKU:
107000316
Rinnai
SKU:
107000316
Brand:
Rinnai
–
+
$12.07
each
ADD TO CART
Add to List
Backorder
Get it by
Wed, Sep 16 - Wed, Oct 14
Backorder
Get it by
Wed, Sep 16 - Wed, Oct 14
Add to List
106000016 Compare Checkbox
Compare
Combustion Chamber Sightglass Plate, 106000016
SKU:
106000016
Rinnai
SKU:
106000016
Brand:
Rinnai
–
+
$9.82
each
ADD TO CART
Add to List
In Stock
Get 1 by
Tue, Aug 18
Total Available: 2
In Stock
Get 1 by
Tue, Aug 18
Total Available: 2
Add to List
109000234 Compare Checkbox
Compare
Gasket, 109000234
SKU:
109000234
Rinnai
SKU:
109000234
Brand:
Rinnai
–
+
$10.53
each
ADD TO CART
Add to List
In Stock
Get 7 by
Tue, Aug 18
Total Available: 14
In Stock
Get 7 by
Tue, Aug 18
Total Available: 14
Add to List
NPD310 Compare Checkbox
Compare
3-Way Valve, NPD310
SKU:
NPD310
Noritz
SKU:
NPD310
Brand:
Noritz
–
+
$176.04
each
ADD TO CART
Add to List
In Stock
Get 2 by
Tue, Aug 18
Total Available: 8
In Stock
Get 2 by
Tue, Aug 18
Total Available: 8
Add to List
FADL004 Compare Checkbox
Compare
Gasket - Ignition Plug (HEX), FADL004
SKU:
FADL004
Noritz
SKU:
FADL004
Brand:
Noritz
(2)
–
+
$1.94
each
ADD TO CART
Add to List
In Stock
Get 1 by
Wed, Aug 19
Total Available: 6
In Stock
Get 1 by
Wed, Aug 19
Total Available: 6
Add to List
87387017000 Compare Checkbox
Compare
Flow Sensor, 87387017000
SKU:
87387017000
Bosch
SKU:
87387017000
Brand:
Bosch
–
+
$90.84
each
ADD TO CART
Add to List
In Stock
Get 1 by
Tue, Aug 18
Total Available: 2
In Stock
Get 1 by
Tue, Aug 18
Total Available: 2
Add to List
105000095 Compare Checkbox
Compare
High Tension Cord for RC98HPi, RC98HPe, 105000095
SKU:
105000095
Rinnai
SKU:
105000095
Brand:
Rinnai
–
+
$5.28
each
ADD TO CART
Add to List
In Stock
Get 3 by
Tue, Aug 18
Total Available: 8
In Stock
Get 3 by
Tue, Aug 18
Total Available: 8
Add to List
100074402 Compare Checkbox
Compare
Thermistor Outlet, 100074402
SKU:
100074402
Takagi
SKU:
100074402
Brand:
Takagi
(1)
–
+
$20.52
each
ADD TO CART
Add to List
In Stock
Get 5 by
Tue, Aug 18
Total Available: 10
In Stock
Get 5 by
Tue, Aug 18
Total Available: 10
Add to List
100076539 Compare Checkbox
Compare
Inlet Drain Plug, 100076539
SKU:
100076539
Takagi
SKU:
100076539
Brand:
Takagi
(2)
–
+
$6.19
each
ADD TO CART
Add to List
In Stock
Get 2 by
Tue, Aug 18
Total Available: 7
In Stock
Get 2 by
Tue, Aug 18
Total Available: 7
Add to List
105000019 Compare Checkbox
Compare
High Tension Cord, 105000019
SKU:
105000019
Rinnai
SKU:
105000019
Brand:
Rinnai
–
+
$7.35
each
ADD TO CART
Add to List
In Stock
Get 1 by
Tue, Aug 18
Total Available: 6
In Stock
Get 1 by
Tue, Aug 18
Total Available: 6
Add to List
NPA027 Compare Checkbox
Compare
Flame Detector Sensor Bracket, NPA027
SKU:
NPA027
Noritz
SKU:
NPA027
Brand:
Noritz
–
+
$5.30
each
ADD TO CART
Add to List
In Stock
Get 2 by
Tue, Aug 18
Total Available: 5
In Stock
Get 2 by
Tue, Aug 18
Total Available: 5
Add to List
RTG20074DL Compare Checkbox
Compare
Ignition Electrode, RTG20074DL
SKU:
RTG20074DL
Rheem
SKU:
RTG20074DL
Brand:
Rheem
–
+
$5.47
each
ADD TO CART
Add to List
Out of Stock
Get it by
Tue, Sep 1 - Wed, Sep 9
Out of Stock
Get it by
Tue, Sep 1 - Wed, Sep 9
Add to List
100076530 Compare Checkbox
Compare
Flame Rod Replacement, 100076530
SKU:
100076530
Takagi
SKU:
100076530
Brand:
Takagi
(1)
–
+
$13.82
each
ADD TO CART
Add to List
In Stock
Get 2 by
Tue, Aug 18
Total Available: 11
In Stock
Get 2 by
Tue, Aug 18
Total Available: 11
Add to List
RTG20006AR Compare Checkbox
Compare
Inlet Thermistor - White, RTG20006AR
SKU:
RTG20006AR
Rheem
SKU:
RTG20006AR
Brand:
Rheem
–
+
$16.16
each
ADD TO CART
Add to List
Out of Stock
Get it by
Tue, Sep 1 - Wed, Sep 9
Out of Stock
Get it by
Tue, Sep 1 - Wed, Sep 9
Add to List
EHKL002 Compare Checkbox
Compare
Gasket - Ignition Plug, EHKL002
SKU:
EHKL002
Noritz
SKU:
EHKL002
Brand:
Noritz
–
+
$1.58
each
ADD TO CART
Add to List
In Stock
Get 7 by
Tue, Aug 18
Total Available: 14
In Stock
Get 7 by
Tue, Aug 18
Total Available: 14
Add to List
RTE10041 Compare Checkbox
Compare
0.3 GPM Aerator, RTE10041
SKU:
RTE10041
Eemax
SKU:
RTE10041
Brand:
Eemax
–
+
$22.88
each
ADD TO CART
Add to List
Backorder
Get it by
Wed, Sep 9 - Wed, Sep 16
Backorder
Get it by
Wed, Sep 9 - Wed, Sep 16
Add to List
REU-MSB-C1 Compare Checkbox
Compare
Cable Connect for Multiple Tankless Water Heaters to MSB Board, REU-MSB-C1
SKU:
REU-MSB-C1
Rinnai
SKU:
REU-MSB-C1
Brand:
Rinnai
–
+
$75.53
each
ADD TO CART
Add to List
In Stock
Get 2 by
Tue, Aug 18
Total Available: 11
In Stock
Get 2 by
Tue, Aug 18
Total Available: 11
Add to List
U211-322X01 Compare Checkbox
Compare
Stop Bracket, U211-322X01
SKU:
U211-322X01
Rinnai
SKU:
U211-322X01
Brand:
Rinnai
–
+
$3.36
each
ADD TO CART
Add to List
In Stock
Get 3 by
Thu, Aug 20
In Stock
Get 3 by
Thu, Aug 20
Add to List
100074609 Compare Checkbox
Compare
Kit, Rod, Flame, W/ Afr Function, 100074609
SKU:
100074609
AO Smith
SKU:
100074609
Brand:
AO Smith
–
+
$25.80
each
ADD TO CART
Add to List
In Stock
Get 1 by
Wed, Aug 19
Total Available: 5
In Stock
Get 1 by
Wed, Aug 19
Total Available: 5
Add to List
100074355 Compare Checkbox
Compare
Flame Rod Wire, 100074355
SKU:
100074355
Takagi
SKU:
100074355
Brand:
Takagi
–
+
$11.15
each
ADD TO CART
Add to List
In Stock
Get 2 by
Tue, Aug 18
Total Available: 6
In Stock
Get 2 by
Tue, Aug 18
Total Available: 6
Add to List
109000496 Compare Checkbox
Compare
Stop Bracket, 109000496
SKU:
109000496
Rinnai
SKU:
109000496
Brand:
Rinnai
–
+
$4.05
each
ADD TO CART
Add to List
Backorder
Get it by
Wed, Sep 16 - Wed, Oct 14
Backorder
Get it by
Wed, Sep 16 - Wed, Oct 14
Add to List
RTE10275 Compare Checkbox
Compare
Replacement Element for SPEX4277 (T), SP4277, EX4277 (T), RTE10275
SKU:
RTE10275
Eemax
SKU:
RTE10275
Brand:
Eemax
–
+
$165.64
each
ADD TO CART
Add to List
Out of Stock
Get it by
Tue, Sep 1 - Wed, Sep 9
Out of Stock
Get it by
Tue, Sep 1 - Wed, Sep 9
Add to List
109000249 Compare Checkbox
Compare
Electrode Sleeve, 109000249
SKU:
109000249
Rinnai
SKU:
109000249
Brand:
Rinnai
–
+
$5.31
each
ADD TO CART
Add to List
In Stock
Get 4 by
Tue, Aug 18
Total Available: 16
In Stock
Get 4 by
Tue, Aug 18
Total Available: 16
Add to List
RTG20164K Compare Checkbox
Compare
3/4" Gas Inlet Connector, RTG20164K
SKU:
RTG20164K
Rheem
SKU:
RTG20164K
Brand:
Rheem
(1)
–
+
$17.88
each
ADD TO CART
Add to List
In Stock
Get 3 by
Wed, Aug 19
Total Available: 8
In Stock
Get 3 by
Wed, Aug 19
Total Available: 8
Add to List
105000235 Compare Checkbox
Compare
Thermistor, 105000235
SKU:
105000235
Rinnai
SKU:
105000235
Brand:
Rinnai
–
+
$23.20
each
ADD TO CART
Add to List
In Stock
Get 2 by
Fri, Aug 21
In Stock
Get 2 by
Fri, Aug 21
Add to List
100076537 Compare Checkbox
Compare
Overheat Cutoff Fuse, 100076537
SKU:
100076537
Takagi
SKU:
100076537
Brand:
Takagi
(1)
–
+
$14.14
each
ADD TO CART
Add to List
In Stock
Get 2 by
Tue, Aug 18
Total Available: 4
In Stock
Get 2 by
Tue, Aug 18
Total Available: 4
Add to List
168026 Compare Checkbox
Compare
Micro Switch for DHC Tankless Water Heaters , 168026
SKU:
168026
Stiebel Eltron
SKU:
168026
Brand:
Stiebel Eltron
(4)
–
+
$28.49
each
ADD TO CART
Add to List
In Stock
Get 30 by
Wed, Aug 19
Total Available: 36
In Stock
Get 30 by
Wed, Aug 19
Total Available: 36
Add to List
104000216 Compare Checkbox
Compare
LP to NG Conversion Kit for RL94e (VC), 104000216
SKU:
104000216
Rinnai
SKU:
104000216
Brand:
Rinnai
(1)
–
+
$102.07
each
ADD TO CART
Add to List
In Stock
Get 1 by
Tue, Aug 18
Total Available: 7
In Stock
Get 1 by
Tue, Aug 18
Total Available: 7
Add to List
1
...
8
9
10
...
121
Resources
FAQs, Manuals & Videos
Videos
Venting for Boilers & Water Heaters
How to Connect PEX to a Water Heater
Close Resources
Refresh
×
Video