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
109001251 Compare Checkbox
Compare
Front Cover, 109001251
SKU:
109001251
Rinnai
SKU:
109001251
Brand:
Rinnai
(1)
–
+
$62.77
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
104000215 Compare Checkbox
Compare
LP to NG Conversion Kit for RL94i, 104000215
SKU:
104000215
Rinnai
SKU:
104000215
Brand:
Rinnai
(1)
–
+
$102.33
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
100074271 Compare Checkbox
Compare
Water Control Valve, 100074271
SKU:
100074271
Takagi
SKU:
100074271
Brand:
Takagi
–
+
$211.35
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
U245-262 Compare Checkbox
Compare
Combustion Chamber Package Upper Kit for V2532W/FFU, U245-262
SKU:
U245-262
Rinnai
SKU:
U245-262
Brand:
Rinnai
(3)
–
+
$13.22
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
MK-NRCB-1 Compare Checkbox
Compare
Combi Manifold Kit, MK-NRCB-1
SKU:
MK-NRCB-1
Noritz
SKU:
MK-NRCB-1
Brand:
Noritz
(6)
–
+
$587.02
each
ADD TO CART
Add to List
In Stock
Get 3 by
Tue, Aug 18
Total Available: 17
In Stock
Get 3 by
Tue, Aug 18
Total Available: 17
Add to List
224069 Compare Checkbox
Compare
Everhot - 6" Condensate Collector, 224069
SKU:
224069
Rinnai
SKU:
224069
Brand:
Rinnai
(1)
–
+
$76.00
each
ADD TO CART
Add to List
In Stock
Get 14 by
Tue, Aug 18
Total Available: 22
In Stock
Get 14 by
Tue, Aug 18
Total Available: 22
Add to List
805000059 Compare Checkbox
Compare
IGNITION ELECTRODE + GASKET ICON, 805000059
SKU:
805000059
Rinnai
SKU:
805000059
Brand:
Rinnai
–
+
$112.14
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
103000077 Compare Checkbox
Compare
Conversion Kit LP/NG For Models RU199e RUR199e CU199e, 103000077
SKU:
103000077
Rinnai
SKU:
103000077
Brand:
Rinnai
(1)
–
+
$51.84
each
ADD TO CART
Add to List
In Stock
Get 5 by
Tue, Aug 18
Total Available: 22
In Stock
Get 5 by
Tue, Aug 18
Total Available: 22
Add to List
RTG20299AC Compare Checkbox
Compare
Temperature Sensor, RTG20299AC
SKU:
RTG20299AC
Rheem
SKU:
RTG20299AC
Brand:
Rheem
(1)
–
+
$10.96
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
104000265 Compare Checkbox
Compare
Recirculation Pump Kit (KBP), 104000265
SKU:
104000265
Rinnai
SKU:
104000265
Brand:
Rinnai
–
+
$543.52
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
NPH079 Compare Checkbox
Compare
Igniter, NPH079
SKU:
NPH079
Noritz
SKU:
NPH079
Brand:
Noritz
–
+
$61.00
each
ADD TO CART
Add to List
In Stock
Get 1 by
Tue, Aug 18
Total Available: 5
In Stock
Get 1 by
Tue, Aug 18
Total Available: 5
Add to List
304F-9077X01 Compare Checkbox
Compare
Wall Bracket 431FA/431Wta/556FA, 304F-9077X01
SKU:
304F-9077X01
Rinnai
SKU:
304F-9077X01
Brand:
Rinnai
(1)
–
+
$2.26
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
87387025500 Compare Checkbox
Compare
Cover, 87387025500
SKU:
87387025500
Bosch
SKU:
87387025500
Brand:
Bosch
–
+
$16.50
each
ADD TO CART
Add to List
In Stock
Get 2 by
Tue, Aug 18
Total Available: 12
In Stock
Get 2 by
Tue, Aug 18
Total Available: 12
Add to List
HKPD005 Compare Checkbox
Compare
Water Servo - Main, HKPD005
SKU:
HKPD005
Noritz
SKU:
HKPD005
Brand:
Noritz
(4)
–
+
$101.04
each
ADD TO CART
Add to List
In Stock
Get 2 by
Wed, Aug 19
Total Available: 5
In Stock
Get 2 by
Wed, Aug 19
Total Available: 5
Add to List
104000311 Compare Checkbox
Compare
LP to NG Conversion Kit for RE140/RE160/REP160, 104000311
SKU:
104000311
Rinnai
SKU:
104000311
Brand:
Rinnai
–
+
$96.30
each
ADD TO CART
Add to List
In Stock
Get 1 by
Wed, Aug 19
Total Available: 3
In Stock
Get 1 by
Wed, Aug 19
Total Available: 3
Add to List
M10B-2-10 Compare Checkbox
Compare
O-Ring, M10B-2-10
SKU:
M10B-2-10
Rinnai
SKU:
M10B-2-10
Brand:
Rinnai
–
+
$0.37
each
ADD TO CART
Add to List
In Stock
Get 4 by
Thu, Aug 20
Total Available: 5
In Stock
Get 4 by
Thu, Aug 20
Total Available: 5
Add to List
M6J-1-3 Compare Checkbox
Compare
By-Pass Servo Assembly (403) V2532Ffu, M6J-1-3
SKU:
M6J-1-3
Rinnai
SKU:
M6J-1-3
Brand:
Rinnai
–
+
$102.50
each
ADD TO CART
Add to List
In Stock
Get 2 by
Tue, Aug 18
Total Available: 9
In Stock
Get 2 by
Tue, Aug 18
Total Available: 9
Add to List
104000310 Compare Checkbox
Compare
NG to LP Conversion Kit for RE140/RE160/REP160, 104000310
SKU:
104000310
Rinnai
SKU:
104000310
Brand:
Rinnai
–
+
$126.67
each
ADD TO CART
Add to List
In Stock
Get 2 by
Wed, Aug 19
Total Available: 4
In Stock
Get 2 by
Wed, Aug 19
Total Available: 4
Add to List
87085050230 Compare Checkbox
Compare
Water Valve With Engine, 87085050230
SKU:
87085050230
Bosch
SKU:
87085050230
Brand:
Bosch
–
+
$325.87
each
ADD TO CART
Add to List
In Stock
Get 3 by
Wed, Aug 19
Total Available: 6
In Stock
Get 3 by
Wed, Aug 19
Total Available: 6
Add to List
CP-30580 Compare Checkbox
Compare
Truss Screw, CP-30580
SKU:
CP-30580
Rinnai
SKU:
CP-30580
Brand:
Rinnai
–
+
$1.28
each
ADD TO CART
Add to List
In Stock
Get 10 by
Tue, Aug 18
Total Available: 31
In Stock
Get 10 by
Tue, Aug 18
Total Available: 31
Add to List
286372 Compare Checkbox
Compare
Electronic Temp. Control for 2nd gen. (grey) Tempra Plus, 286372
SKU:
286372
Stiebel Eltron
SKU:
286372
Brand:
Stiebel Eltron
–
+
$42.27
each
ADD TO CART
Add to List
In Stock
Get 3 by
Tue, Aug 18
Total Available: 10
In Stock
Get 3 by
Tue, Aug 18
Total Available: 10
Add to List
AH66-398-2 Compare Checkbox
Compare
Electrode Packing, AH66-398-2
SKU:
AH66-398-2
Rinnai
SKU:
AH66-398-2
Brand:
Rinnai
(3)
–
+
$6.17
each
ADD TO CART
Add to List
In Stock
Get 3 by
Tue, Aug 18
Total Available: 11
In Stock
Get 3 by
Tue, Aug 18
Total Available: 11
Add to List
RTG20298B Compare Checkbox
Compare
Water Inlet Valve Assembly, RTG20298B
SKU:
RTG20298B
Rheem
SKU:
RTG20298B
Brand:
Rheem
–
+
$40.93
each
ADD TO CART
Add to List
In Stock
Get 2 by
Tue, Aug 18
Total Available: 3
In Stock
Get 2 by
Tue, Aug 18
Total Available: 3
Add to List
87154073280 Compare Checkbox
Compare
Expansion Vessel, 87154073280
SKU:
87154073280
Bosch
SKU:
87154073280
Brand:
Bosch
–
+
$269.17
each
ADD TO CART
Add to List
In Stock
Get 13 by
Wed, Aug 19
Total Available: 15
In Stock
Get 13 by
Wed, Aug 19
Total Available: 15
Add to List
100074374 Compare Checkbox
Compare
Kit, Thermistor, Mixing, 100074374
SKU:
100074374
AO Smith
SKU:
100074374
Brand:
AO Smith
–
+
$15.71
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
807000152 Compare Checkbox
Compare
CARTRIDGE 3-WAY VALVE, 807000152
SKU:
807000152
Rinnai
SKU:
807000152
Brand:
Rinnai
–
+
$85.70
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
100074398 Compare Checkbox
Compare
Inlet Thermistor for T-KJr2-IN/OS & T-K4-IN/OS, 100074398
SKU:
100074398
Takagi
SKU:
100074398
Brand:
Takagi
(2)
–
+
$20.52
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
104000252 Compare Checkbox
Compare
By-Pass Valve Kit (KB), 104000252
SKU:
104000252
Rinnai
SKU:
104000252
Brand:
Rinnai
–
+
$150.00
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
100076303 Compare Checkbox
Compare
O-Ring FKM, 100076303
SKU:
100076303
AO Smith
SKU:
100076303
Brand:
AO Smith
–
+
$9.56
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
100074670 Compare Checkbox
Compare
Burner Assembly, 100074670
SKU:
100074670
Takagi
SKU:
100074670
Brand:
Takagi
(1)
–
+
$130.39
each
ADD TO CART
Add to List
In Stock
Get 3 by
Tue, Aug 18
In Stock
Get 3 by
Tue, Aug 18
Add to List
87181050510 Compare Checkbox
Compare
Pilot Burner Assembly, 87181050510
SKU:
87181050510
Bosch
SKU:
87181050510
Brand:
Bosch
–
+
$31.50
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
104000051 Compare Checkbox
Compare
Vent Top Kit (Female), 104000051
SKU:
104000051
Rinnai
SKU:
104000051
Brand:
Rinnai
–
+
$75.51
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
106000119 Compare Checkbox
Compare
Inlet Gas Supply Connection, 106000119
SKU:
106000119
Rinnai
SKU:
106000119
Brand:
Rinnai
–
+
$60.23
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
103000092 Compare Checkbox
Compare
NG to LP Conversion Kit for V53DE, 103000092
SKU:
103000092
Rinnai
SKU:
103000092
Brand:
Rinnai
(3)
–
+
$99.78
each
ADD TO CART
Add to List
In Stock
Get 2 by
Tue, Aug 18
Total Available: 9
In Stock
Get 2 by
Tue, Aug 18
Total Available: 9
Add to List
104000246 Compare Checkbox
Compare
Heat Exchanger Kit, 104000246
SKU:
104000246
Rinnai
SKU:
104000246
Brand:
Rinnai
(2)
–
+
$361.11
each
ADD TO CART
Add to List
In Stock
Get 3 by
Tue, Aug 18
Total Available: 10
In Stock
Get 3 by
Tue, Aug 18
Total Available: 10
Add to List
100074342 Compare Checkbox
Compare
310 Indoor/Outdoor PCB Kit, 100074342
SKU:
100074342
Takagi
SKU:
100074342
Brand:
Takagi
(2)
–
+
$243.75
each
ADD TO CART
Add to List
In Stock
Get 4 by
Tue, Aug 18
Total Available: 7
In Stock
Get 4 by
Tue, Aug 18
Total Available: 7
Add to List
107000318 Compare Checkbox
Compare
Inlet Water Thermistor, 107000318
SKU:
107000318
Rinnai
SKU:
107000318
Brand:
Rinnai
–
+
$13.38
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
EI-189 Compare Checkbox
Compare
Sparker (black box) for V2532W/Ffu/WC (706), EI-189
SKU:
EI-189
Rinnai
SKU:
EI-189
Brand:
Rinnai
–
+
$80.11
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
100074257 Compare Checkbox
Compare
Inlet Water Filter, 100074257
SKU:
100074257
Takagi
SKU:
100074257
Brand:
Takagi
(1)
–
+
$12.64
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
104000221 Compare Checkbox
Compare
NG to LP Conversion Kit for RL94i, 104000221
SKU:
104000221
Rinnai
SKU:
104000221
Brand:
Rinnai
(1)
–
+
$90.44
each
ADD TO CART
Add to List
In Stock
Get 4 by
Tue, Aug 18
Total Available: 13
In Stock
Get 4 by
Tue, Aug 18
Total Available: 13
Add to List
RTG20217XG Compare Checkbox
Compare
Tankless Pipe Cover Kit, RTG20217XG
SKU:
RTG20217XG
Rheem
SKU:
RTG20217XG
Brand:
Rheem
–
+
$95.86
each
ADD TO CART
Add to List
In Stock
Get 2 by
Tue, Aug 18
Total Available: 220
In Stock
Get 2 by
Tue, Aug 18
Total Available: 220
Add to List
109000616 Compare Checkbox
Compare
Secondary Heat Exchanger Gasket, 109000616
SKU:
109000616
Rinnai
SKU:
109000616
Brand:
Rinnai
–
+
$29.90
each
ADD TO CART
Add to List
In Stock
Get 6 by
Tue, Aug 18
Total Available: 8
In Stock
Get 6 by
Tue, Aug 18
Total Available: 8
Add to List
RTG20006BB Compare Checkbox
Compare
Outlet Thermistor - Black, RTG20006BB
SKU:
RTG20006BB
Rheem
SKU:
RTG20006BB
Brand:
Rheem
–
+
$19.97
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
ETHH002 Compare Checkbox
Compare
Thermistor - Exhaust, ETHH002
SKU:
ETHH002
Noritz
SKU:
ETHH002
Brand:
Noritz
–
+
$20.64
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
104000263 Compare Checkbox
Compare
PC Board Kit RU80/98/RUC80/90/98/C199i, 104000263
SKU:
104000263
Rinnai
SKU:
104000263
Brand:
Rinnai
–
+
$285.82
each
ADD TO CART
Add to List
In Stock
Get 2 by
Wed, Aug 19
Total Available: 5
In Stock
Get 2 by
Wed, Aug 19
Total Available: 5
Add to List
100074610 Compare Checkbox
Compare
Kit, Rod, Igniter, 100074610
SKU:
100074610
AO Smith
SKU:
100074610
Brand:
AO Smith
–
+
$18.13
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
107000691 Compare Checkbox
Compare
Water Flow Control Assembly Kit, 107000691
SKU:
107000691
Rinnai
SKU:
107000691
Brand:
Rinnai
–
+
$89.13
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
204000044 Compare Checkbox
Compare
Kit, Electrode EX08C, EX11C w/gaskets, 204000044
SKU:
204000044
Rinnai
SKU:
204000044
Brand:
Rinnai
–
+
$36.49
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
1
...
7
8
9
...
121
Resources
FAQs, Manuals & Videos
Videos
Venting for Boilers & Water Heaters
How to Connect PEX to a Water Heater
Close Resources
Refresh
×
Video