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
5,769 items
Reset
SORT
Top Sellers
Default
Price ▲
Price ▼
Product Availability
–
Show In Stock Only</strong> Filter (669)
Show
In Stock Only
(669)
Category
–
AO Smith (45)
Bosch (1420)
Eemax (106)
Noritz (806)
Rheem (479)
Rinnai (2314)
Stiebel Eltron (71)
Takagi (540)
Laars (3)
Craftsman (5)
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 (301)
(301)
4 Filter (32)
(32)
3 Filter (6)
(6)
2 Filter (1)
(1)
1 Filter (4)
(4)
Price Range
–
Under $1 Filter (133)
Under $1 (133)
$1 to $5 Filter (481)
$1 to $5 (481)
$5 to $10 Filter (774)
$5 to $10 (774)
$10 to $15 Filter (483)
$10 to $15 (483)
$15 to $20 Filter (400)
$15 to $20 (400)
$20 to $25 Filter (286)
$20 to $25 (286)
$25 to $30 Filter (284)
$25 to $30 (284)
$30 to $35 Filter (275)
$30 to $35 (275)
$35 to $40 Filter (171)
$35 to $40 (171)
$40 to $45 Filter (151)
$40 to $45 (151)
See More
Home
Plumbing Supplies
Water Heater Parts
Tankless Replacement Parts
Tankless Replacement Parts
Need a little help?
View our Resources
5769 items
FILTER
Grid
List
Sort: Top Sellers
224054 Compare Checkbox
Compare
Aluminum and Metal Telescoping Vent Length, 224054
SKU:
224054
Rinnai
SKU:
224054
Brand:
Rinnai
–
+
$68.32
each
ADD TO CART
Add to List
In Stock
Get 5 by
Tomorrow, Sep 30
Total Available: 18
In Stock
Get 5 by
Tomorrow, Sep 30
Total Available: 18
Add to List
109000210 Compare Checkbox
Compare
Seal Screw Condensing, 109000210
SKU:
109000210
Rinnai
SKU:
109000210
Brand:
Rinnai
–
+
$1.73
each
ADD TO CART
Add to List
In Stock
Get 139 by
Tomorrow, Sep 30
Total Available: 392
In Stock
Get 139 by
Tomorrow, Sep 30
Total Available: 392
Add to List
104000236 Compare Checkbox
Compare
Heat Exchanger Kit for RL75i, V75i, V65i-VC (No Cir Log), 104000236
SKU:
104000236
Rinnai
SKU:
104000236
Brand:
Rinnai
(2)
–
+
$540.35
each
ADD TO CART
Add to List
In Stock
Get 6 by
Tomorrow, Sep 30
Total Available: 9
In Stock
Get 6 by
Tomorrow, Sep 30
Total Available: 9
Add to List
107000267 Compare Checkbox
Compare
Condensate Trap, 107000267
SKU:
107000267
Rinnai
SKU:
107000267
Brand:
Rinnai
(1)
–
+
$58.70
each
ADD TO CART
Add to List
In Stock
Get 1 by
Tomorrow, Sep 30
Total Available: 5
In Stock
Get 1 by
Tomorrow, Sep 30
Total Available: 5
Add to List
286373 Compare Checkbox
Compare
Heating System for Tempra 29 B, 29 Plus and 29 Trend , 286373
SKU:
286373
Stiebel Eltron
SKU:
286373
Brand:
Stiebel Eltron
(1)
–
+
$380.85
each
ADD TO CART
Add to List
In Stock
Get 6 by
Tomorrow, Sep 30
Total Available: 22
In Stock
Get 6 by
Tomorrow, Sep 30
Total Available: 22
Add to List
109000650 Compare Checkbox
Compare
Screw, 109000650
SKU:
109000650
Rinnai
SKU:
109000650
Brand:
Rinnai
–
+
$3.17
each
ADD TO CART
Add to List
In Stock
Get 70 by
Tomorrow, Sep 30
Total Available: 158
In Stock
Get 70 by
Tomorrow, Sep 30
Total Available: 158
Add to List
256127 Compare Checkbox
Compare
Flow Sensor, 256127
SKU:
256127
Stiebel Eltron
SKU:
256127
Brand:
Stiebel Eltron
–
+
$53.70
each
ADD TO CART
Add to List
In Stock
Get 2 by
Tomorrow, Sep 30
Total Available: 8
In Stock
Get 2 by
Tomorrow, Sep 30
Total Available: 8
Add to List
RTG20239AY Compare Checkbox
Compare
Gas Control Valve Assembly, RTG20239AY
SKU:
RTG20239AY
Rheem
SKU:
RTG20239AY
Brand:
Rheem
(1)
–
+
$176.84
each
ADD TO CART
Add to List
Backorder
Get it by
Wed, Oct 21 - Wed, Oct 28
Backorder
Get it by
Wed, Oct 21 - Wed, Oct 28
Add to List
104000231 Compare Checkbox
Compare
PC Board Kit for V65, V75, RL75i (VC), 104000231
SKU:
104000231
Rinnai
SKU:
104000231
Brand:
Rinnai
(2)
–
+
$240.20
each
ADD TO CART
Add to List
In Stock
Get 8 by
Tomorrow, Sep 30
Total Available: 10
In Stock
Get 8 by
Tomorrow, Sep 30
Total Available: 10
Add to List
105000145 Compare Checkbox
Compare
Electrode Kit for RU80/98i/e, 105000145
SKU:
105000145
Rinnai
SKU:
105000145
Brand:
Rinnai
–
+
$19.10
each
ADD TO CART
Add to List
In Stock
Get 4 by
Tue, Oct 6
In Stock
Get 4 by
Tue, Oct 6
Add to List
NAD230 Compare Checkbox
Compare
3-Way Valve Kit, NAD230
SKU:
NAD230
Noritz
SKU:
NAD230
Brand:
Noritz
–
+
$156.61
each
ADD TO CART
Add to List
In Stock
Get 3 by
Tomorrow, Sep 30
Total Available: 8
In Stock
Get 3 by
Tomorrow, Sep 30
Total Available: 8
Add to List
87005070010 Compare Checkbox
Compare
Water Strainer (Pack of 10), 87005070010
SKU:
87005070010
Bosch
SKU:
87005070010
Brand:
Bosch
–
+
$37.47
each
ADD TO CART
Add to List
In Stock
Get 3 by
Tomorrow, Sep 30
Total Available: 5
In Stock
Get 3 by
Tomorrow, Sep 30
Total Available: 5
Add to List
100076538 Compare Checkbox
Compare
Filter Assembly For T-H1, T-KJR, 100076538
SKU:
100076538
Takagi
SKU:
100076538
Brand:
Takagi
(4)
–
+
$7.19
each
ADD TO CART
Add to List
In Stock
Get 5 by
Tomorrow, Sep 30
Total Available: 15
In Stock
Get 5 by
Tomorrow, Sep 30
Total Available: 15
Add to List
SKG7864 Compare Checkbox
Compare
Condensate Container (SET), SKG7864
SKU:
SKG7864
Noritz
SKU:
SKG7864
Brand:
Noritz
–
+
$65.84
each
ADD TO CART
Add to List
In Stock
Get 3 by
Tomorrow, Sep 30
Total Available: 4
In Stock
Get 3 by
Tomorrow, Sep 30
Total Available: 4
Add to List
106000083 Compare Checkbox
Compare
Combustion Chamber Packing, 106000083
SKU:
106000083
Rinnai
SKU:
106000083
Brand:
Rinnai
–
+
$10.52
each
ADD TO CART
Add to List
In Stock
Get 1 by
Tomorrow, Sep 30
Total Available: 7
In Stock
Get 1 by
Tomorrow, Sep 30
Total Available: 7
Add to List
107000094 Compare Checkbox
Compare
Connecting Pipe - Inlet, 107000094
SKU:
107000094
Rinnai
SKU:
107000094
Brand:
Rinnai
(1)
–
+
$39.08
each
ADD TO CART
Add to List
In Stock
Get 2 by
Tomorrow, Sep 30
Total Available: 8
In Stock
Get 2 by
Tomorrow, Sep 30
Total Available: 8
Add to List
87105062670 Compare Checkbox
Compare
Temperature Limiter Assembly, 87105062670
SKU:
87105062670
Bosch
SKU:
87105062670
Brand:
Bosch
(1)
–
+
$41.48
each
ADD TO CART
Add to List
In Stock
Get 1 by
Tomorrow, Sep 30
Total Available: 7
In Stock
Get 1 by
Tomorrow, Sep 30
Total Available: 7
Add to List
RTG20298AF Compare Checkbox
Compare
Ignition Transformer, RTG20298AF
SKU:
RTG20298AF
Rheem
SKU:
RTG20298AF
Brand:
Rheem
–
+
$34.17
each
ADD TO CART
Add to List
Backorder
Get it by
Wed, Oct 21 - Wed, Oct 28
Backorder
Get it by
Wed, Oct 21 - Wed, Oct 28
Add to List
RTG20212AB Compare Checkbox
Compare
Blower Motor, RTG20212AB
SKU:
RTG20212AB
Rheem
SKU:
RTG20212AB
Brand:
Rheem
–
+
$172.73
each
ADD TO CART
Add to List
Out of Stock
Get it by
Wed, Oct 14 - Wed, Oct 21
Out of Stock
Get it by
Wed, Oct 14 - Wed, Oct 21
Add to List
104000217 Compare Checkbox
Compare
NG to LP Conversion Kit for RL75i, 104000217
SKU:
104000217
Rinnai
SKU:
104000217
Brand:
Rinnai
(1)
–
+
$74.89
each
ADD TO CART
Add to List
In Stock
Get 1 by
Tomorrow, Sep 30
Total Available: 11
In Stock
Get 1 by
Tomorrow, Sep 30
Total Available: 11
Add to List
100076244 Compare Checkbox
Compare
Kit, Rod, Igniter, 100076244
SKU:
100076244
AO Smith
SKU:
100076244
Brand:
AO Smith
–
+
$13.42
each
ADD TO CART
Add to List
In Stock
Get 1 by
Tomorrow, Sep 30
Total Available: 7
In Stock
Get 1 by
Tomorrow, Sep 30
Total Available: 7
Add to List
108000068 Compare Checkbox
Compare
Flue Connection Assembly for RL75/94i (VC), 108000068
SKU:
108000068
Rinnai
SKU:
108000068
Brand:
Rinnai
(3)
–
+
$93.25
each
ADD TO CART
Add to List
In Stock
Get 4 by
Tomorrow, Sep 30
Total Available: 20
In Stock
Get 4 by
Tomorrow, Sep 30
Total Available: 20
Add to List
RPK-EXT Compare Checkbox
Compare
External Recirculation Pump, RPK-EXT
SKU:
RPK-EXT
Noritz
SKU:
RPK-EXT
Brand:
Noritz
–
+
$402.48
each
ADD TO CART
Add to List
In Stock
Get 2 by
Tomorrow, Sep 30
Total Available: 4
In Stock
Get 2 by
Tomorrow, Sep 30
Total Available: 4
Add to List
100074281 Compare Checkbox
Compare
Output Thermistor, 100074281
SKU:
100074281
Takagi
SKU:
100074281
Brand:
Takagi
–
+
$16.90
each
ADD TO CART
Add to List
In Stock
Get 4 by
Fri, Oct 2
Total Available: 7
In Stock
Get 4 by
Fri, Oct 2
Total Available: 7
Add to List
807000131 Compare Checkbox
Compare
ACTUATOR 3-WV 120-230V + CLIP , 807000131
SKU:
807000131
Rinnai
SKU:
807000131
Brand:
Rinnai
–
+
$170.66
each
ADD TO CART
Add to List
Backorder
Get it by
Wed, Oct 28 - Wed, Nov 25
Backorder
Get it by
Wed, Oct 28 - Wed, Nov 25
Add to List
NPA011 Compare Checkbox
Compare
Ignition Rod Gasket, NPA011
SKU:
NPA011
Noritz
SKU:
NPA011
Brand:
Noritz
–
+
$4.42
each
ADD TO CART
Add to List
In Stock
Get 2 by
Fri, Oct 2
Total Available: 5
In Stock
Get 2 by
Fri, Oct 2
Total Available: 5
Add to List
107000032 Compare Checkbox
Compare
Filter Assembly, 107000032
SKU:
107000032
Rinnai
SKU:
107000032
Brand:
Rinnai
(1)
–
+
$8.49
each
ADD TO CART
Add to List
In Stock
Get 21 by
Fri, Oct 2
Total Available: 28
In Stock
Get 21 by
Fri, Oct 2
Total Available: 28
Add to List
A2123601 Compare Checkbox
Compare
Condensate Neutralizer Kit, A2123601
SKU:
A2123601
Laars
SKU:
A2123601
Brand:
Laars
–
+
$111.93
each
ADD TO CART
Add to List
In Stock
Get 2 by
Tomorrow, Sep 30
Total Available: 7
In Stock
Get 2 by
Tomorrow, Sep 30
Total Available: 7
Add to List
100074334 Compare Checkbox
Compare
Overheat Cutoff Fuse, 100074334
SKU:
100074334
Takagi
SKU:
100074334
Brand:
Takagi
(2)
–
+
$21.69
each
ADD TO CART
Add to List
In Stock
Get 4 by
Tomorrow, Sep 30
Total Available: 11
In Stock
Get 4 by
Tomorrow, Sep 30
Total Available: 11
Add to List
104000244 Compare Checkbox
Compare
Fan Motor Kit, 104000244
SKU:
104000244
Rinnai
SKU:
104000244
Brand:
Rinnai
–
+
$109.60
each
ADD TO CART
Add to List
In Stock
Get 1 by
Mon, Oct 5
In Stock
Get 1 by
Mon, Oct 5
Add to List
104000207 Compare Checkbox
Compare
Hex Thermistor Kit for R75/R94/V53i/RC80e/i, 104000207
SKU:
104000207
Rinnai
SKU:
104000207
Brand:
Rinnai
–
+
$50.42
each
ADD TO CART
Add to List
In Stock
Get 3 by
Tomorrow, Sep 30
In Stock
Get 3 by
Tomorrow, Sep 30
Add to List
8738717112 Compare Checkbox
Compare
Overheat Sensor (Eco), 8738717112
SKU:
8738717112
Bosch
SKU:
8738717112
Brand:
Bosch
(1)
–
+
$36.44
each
ADD TO CART
Add to List
In Stock
Get 5 by
Tomorrow, Sep 30
Total Available: 10
In Stock
Get 5 by
Tomorrow, Sep 30
Total Available: 10
Add to List
105000954 Compare Checkbox
Compare
Flame Rod, 105000954
SKU:
105000954
Rinnai
SKU:
105000954
Brand:
Rinnai
–
+
$7.89
each
ADD TO CART
Add to List
Out of Stock
Get it by
Wed, Oct 14 - Wed, Oct 21
Out of Stock
Get it by
Wed, Oct 14 - Wed, Oct 21
Add to List
SP21111 Compare Checkbox
Compare
Leak Sensor- Shut Off Kit, SP21111
SKU:
SP21111
Rheem
SKU:
SP21111
Brand:
Rheem
(4)
–
+
$229.51
each
ADD TO CART
Add to List
In Stock
Get 4 by
Fri, Oct 2
Total Available: 10
In Stock
Get 4 by
Fri, Oct 2
Total Available: 10
Add to List
104000163 Compare Checkbox
Compare
WFSV Assembly Kit, V53I, R75LSi/e VB, 104000163
SKU:
104000163
Rinnai
SKU:
104000163
Brand:
Rinnai
(4)
–
+
$119.01
each
ADD TO CART
Add to List
In Stock
Get 4 by
Tomorrow, Sep 30
Total Available: 14
In Stock
Get 4 by
Tomorrow, Sep 30
Total Available: 14
Add to List
109000241 Compare Checkbox
Compare
Burner Sensor Gasket, RU80/98 i/e KB, 109000241
SKU:
109000241
Rinnai
SKU:
109000241
Brand:
Rinnai
–
+
$8.63
each
ADD TO CART
Add to List
In Stock
Get 9 by
Tomorrow, Sep 30
Total Available: 19
In Stock
Get 9 by
Tomorrow, Sep 30
Total Available: 19
Add to List
104000023 Compare Checkbox
Compare
Electrode Kit, 104000023
SKU:
104000023
Rinnai
SKU:
104000023
Brand:
Rinnai
–
+
$19.68
each
ADD TO CART
Add to List
In Stock
Get 1 by
Mon, Oct 5
Total Available: 5
In Stock
Get 1 by
Mon, Oct 5
Total Available: 5
Add to List
108000050 Compare Checkbox
Compare
Fan Motor, 108000050
SKU:
108000050
Rinnai
SKU:
108000050
Brand:
Rinnai
(2)
–
+
$90.59
each
ADD TO CART
Add to List
In Stock
Get 2 by
Tomorrow, Sep 30
In Stock
Get 2 by
Tomorrow, Sep 30
Add to List
107000275 Compare Checkbox
Compare
Hot Water Connection Fitting w/ O-Ring, 107000275
SKU:
107000275
Rinnai
SKU:
107000275
Brand:
Rinnai
–
+
$22.49
each
ADD TO CART
Add to List
Backorder
Get it by
Wed, Oct 28 - Wed, Nov 25
Backorder
Get it by
Wed, Oct 28 - Wed, Nov 25
Add to List
100074223 Compare Checkbox
Compare
Rod Cap, 100074223
SKU:
100074223
AO Smith
SKU:
100074223
Brand:
AO Smith
–
+
$9.71
each
ADD TO CART
Add to List
In Stock
Get 5 by
Tomorrow, Sep 30
Total Available: 11
In Stock
Get 5 by
Tomorrow, Sep 30
Total Available: 11
Add to List
104000235 Compare Checkbox
Compare
Heat Exchanger Kit for RL94i (VC), 104000235
SKU:
104000235
Rinnai
SKU:
104000235
Brand:
Rinnai
(1)
–
+
$476.34
each
ADD TO CART
Add to List
In Stock
Get 2 by
Tomorrow, Sep 30
Total Available: 17
In Stock
Get 2 by
Tomorrow, Sep 30
Total Available: 17
Add to List
RTG20164J Compare Checkbox
Compare
WATER INLET CONNECTOR 3/4", RTG20164J
SKU:
RTG20164J
Rheem
SKU:
RTG20164J
Brand:
Rheem
(1)
–
+
$75.11
each
ADD TO CART
Add to List
Out of Stock
Get it by
Wed, Oct 14 - Wed, Oct 21
Out of Stock
Get it by
Wed, Oct 14 - Wed, Oct 21
Add to List
100224093 Compare Checkbox
Compare
Manifold/Gas Valve Assembly (Natural Gas), 100224093
SKU:
100224093
AO Smith
SKU:
100224093
Brand:
AO Smith
(1)
–
+
$324.48
each
ADD TO CART
Add to List
In Stock
Get 4 by
Tomorrow, Sep 30
Total Available: 9
In Stock
Get 4 by
Tomorrow, Sep 30
Total Available: 9
Add to List
ETFD010 Compare Checkbox
Compare
Water Servo - Bypass (SET), ETFD010
SKU:
ETFD010
Noritz
SKU:
ETFD010
Brand:
Noritz
(1)
–
+
$121.35
each
ADD TO CART
Add to List
In Stock
Get 3 by
Tomorrow, Sep 30
Total Available: 10
In Stock
Get 3 by
Tomorrow, Sep 30
Total Available: 10
Add to List
RTG20040 Compare Checkbox
Compare
EZ Link Cable Kit, RTG20040
SKU:
RTG20040
Rheem
SKU:
RTG20040
Brand:
Rheem
–
+
$42.90
each
ADD TO CART
Add to List
In Stock
Get 2 by
Mon, Oct 5
In Stock
Get 2 by
Mon, Oct 5
Add to List
316657 Compare Checkbox
Compare
Heating Element Assembly for SHC 2.5 , 316657
SKU:
316657
Stiebel Eltron
SKU:
316657
Brand:
Stiebel Eltron
(2)
–
+
$25.90
each
ADD TO CART
Add to List
In Stock
Get 3 by
Tomorrow, Sep 30
Total Available: 16
In Stock
Get 3 by
Tomorrow, Sep 30
Total Available: 16
Add to List
RTG20299F Compare Checkbox
Compare
Ignition Rod, RTG20299F
SKU:
RTG20299F
Rheem
SKU:
RTG20299F
Brand:
Rheem
–
+
$14.80
each
ADD TO CART
Add to List
Backorder
Get it by
Wed, Oct 28 - Wed, Nov 25
Backorder
Get it by
Wed, Oct 28 - Wed, Nov 25
Add to List
100074352 Compare Checkbox
Compare
Surge Box, 100074352
SKU:
100074352
Takagi
SKU:
100074352
Brand:
Takagi
(6)
–
+
$36.62
each
ADD TO CART
Add to List
In Stock
Get 2 by
Tomorrow, Sep 30
Total Available: 10
In Stock
Get 2 by
Tomorrow, Sep 30
Total Available: 10
Add to List
1
...
5
6
7
...
121
Resources
FAQs, Manuals & Videos
Videos
Venting for Boilers & Water Heaters
How to Connect PEX to a Water Heater
Close Resources
Refresh
×
Video