Skip to accessibility statement
Free shipping on orders over $99
●
Your Zip:
43230
ORDER STATUS
Your Zip:
43230
HELP
MENU
CONTACT & SUPPORT
Live Chat Offline:
Email Us
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
2,607 items
Reset
SORT
Top Sellers
Default
Price ▲
Price ▼
Product Availability
–
Show In Stock Only</strong> Filter (295)
Show
In Stock Only
(295)
Category
–
ARMflo E Series Pumps (53)
Astro Series Pumps (22)
In-Line Pumps (65)
Replacement Parts (2466)
Material
–
Bronze Filter (56)
Bronze (56)
Cast Iron Filter (66)
Cast Iron (66)
Stainless Steel Filter (12)
Stainless Steel (12)
Max Flow (GPM)
–
9 Filter (4)
9 (4)
10 Filter (1)
10 (1)
18 Filter (5)
18 (5)
20 Filter (4)
20 (4)
22 Filter (2)
22 (2)
30 Filter (2)
30 (2)
32 Filter (2)
32 (2)
34 Filter (6)
34 (6)
35 Filter (2)
35 (2)
38 Filter (13)
38 (13)
See More
Max Head (Ft)
–
5.5 Filter (4)
5.5 (4)
8 Filter (2)
8 (2)
11 Filter (2)
11 (2)
14 Filter (2)
14 (2)
14.2 Filter (2)
14.2 (2)
16 Filter (2)
16 (2)
16.5 Filter (2)
16.5 (2)
16.8 Filter (2)
16.8 (2)
17 Filter (2)
17 (2)
17.5 Filter (2)
17.5 (2)
See More
Horse Power
–
1/25 Filter (19)
1/25 (19)
1/20 Filter (2)
1/20 (2)
1/12 Filter (3)
1/12 (3)
1/6 Filter (28)
1/6 (28)
1/4 Filter (7)
1/4 (7)
1/3 Filter (7)
1/3 (7)
2/5 Filter (32)
2/5 (32)
1/2 Filter (12)
1/2 (12)
3/4 Filter (13)
3/4 (13)
1 Filter (15)
1 (15)
See More
Voltage
–
115/230V Filter (2)
115/230V (2)
115V Filter (62)
115V (62)
120v Filter (45)
120v (45)
208-230/460v Filter (1)
208-230/460v (1)
208V Filter (23)
208V (23)
230V Filter (32)
230V (32)
240v Filter (6)
240v (6)
460v Filter (23)
460v (23)
575v Filter (9)
575v (9)
Review Score
–
5 Filter (28)
(28)
4 Filter (3)
(3)
Price Range
–
$1 to $5 Filter (76)
$1 to $5 (76)
$5 to $10 Filter (121)
$5 to $10 (121)
$10 to $15 Filter (82)
$10 to $15 (82)
$15 to $20 Filter (60)
$15 to $20 (60)
$20 to $25 Filter (44)
$20 to $25 (44)
$25 to $30 Filter (34)
$25 to $30 (34)
$30 to $35 Filter (34)
$30 to $35 (34)
$35 to $40 Filter (34)
$35 to $40 (34)
$40 to $45 Filter (23)
$40 to $45 (23)
$45 to $50 Filter (40)
$45 to $50 (40)
See More
Home
Heating Supplies & Parts
Circulator Pumps
Armstrong Pumps
Armstrong Pumps
Need a little help?
View our Resources
2607 items
FILTER
Grid
List
Sort: Top Sellers
691300-007 Compare Checkbox
Compare
Gasket Shl 16" Non Asb
SKU:
691300-007
Armstrong Pumps
SKU:
691300-007
Brand:
Armstrong Pumps
–
+
$332.84
each
ADD TO CART
Add to List
Backorder
Get it by
Mon, Aug 3 - Mon, Aug 31
Backorder
Get it by
Mon, Aug 3 - Mon, Aug 31
Add to List
997095-000 Compare Checkbox
Compare
Hose, Charging Blue W/conn.
SKU:
997095-000
Armstrong Pumps
SKU:
997095-000
Brand:
Armstrong Pumps
–
+
$166.63
each
ADD TO CART
Add to List
Backorder
Get it by
Mon, Aug 3 - Mon, Aug 31
Backorder
Get it by
Mon, Aug 3 - Mon, Aug 31
Add to List
961131-259 Compare Checkbox
Compare
O Ring Buna 6.25 Id
SKU:
961131-259
Armstrong Pumps
SKU:
961131-259
Brand:
Armstrong Pumps
–
+
$9.63
each
ADD TO CART
Add to List
Backorder
Get it by
Mon, Aug 3 - Mon, Aug 31
Backorder
Get it by
Mon, Aug 3 - Mon, Aug 31
Add to List
850605-150 Compare Checkbox
Compare
Standard Kit Hsc 6 X 5 X 15
SKU:
850605-150
Armstrong Pumps
SKU:
850605-150
Brand:
Armstrong Pumps
–
+
$2,223.51
each
ADD TO CART
Add to List
Backorder
Get it by
Tue, Aug 4 - Thu, Sep 3
Backorder
Get it by
Tue, Aug 4 - Thu, Sep 3
Add to List
426492-016 Compare Checkbox
Compare
Housing-brg Ci L Oil-lube 40pf
SKU:
426492-016
Armstrong Pumps
SKU:
426492-016
Brand:
Armstrong Pumps
–
+
$1,924.88
each
ADD TO CART
Add to List
Backorder
Get it by
Mon, Aug 3 - Mon, Aug 31
Backorder
Get it by
Mon, Aug 3 - Mon, Aug 31
Add to List
850605-100 Compare Checkbox
Compare
Standard Kit Hsc 6 X 5 X 10
SKU:
850605-100
Armstrong Pumps
SKU:
850605-100
Brand:
Armstrong Pumps
–
+
$2,218.86
each
ADD TO CART
Add to List
Backorder
Get it by
Tue, Aug 4 - Thu, Sep 3
Backorder
Get it by
Tue, Aug 4 - Thu, Sep 3
Add to List
975000-899 Compare Checkbox
Compare
Spider L099-1100 Lovejoy
SKU:
975000-899
Armstrong Pumps
SKU:
975000-899
Brand:
Armstrong Pumps
–
+
$97.15
each
ADD TO CART
Add to List
Backorder
Get it by
Mon, Aug 3 - Mon, Aug 31
Backorder
Get it by
Mon, Aug 3 - Mon, Aug 31
Add to List
975000-918 Compare Checkbox
Compare
Seat-cer 1.75 W/ Buna
SKU:
975000-918
Armstrong Pumps
SKU:
975000-918
Brand:
Armstrong Pumps
–
+
$486.61
each
ADD TO CART
Add to List
Backorder
Get it by
Mon, Aug 3 - Mon, Aug 31
Backorder
Get it by
Mon, Aug 3 - Mon, Aug 31
Add to List
D958164-102 Compare Checkbox
Compare
Assembly Cart Mseal Bronze 2-1/8 Carb
SKU:
D958164-102
Armstrong Pumps
SKU:
D958164-102
Brand:
Armstrong Pumps
–
+
$3,768.02
each
ADD TO CART
Add to List
Backorder
Get it by
Tue, Aug 4 - Thu, Sep 3
Backorder
Get it by
Tue, Aug 4 - Thu, Sep 3
Add to List
411628-000 Compare Checkbox
Compare
Oil Seal, 411628-000
SKU:
411628-000
Armstrong Pumps
SKU:
411628-000
Brand:
Armstrong Pumps
–
+
$105.63
each
ADD TO CART
Add to List
Backorder
Get it by
Mon, Aug 3 - Mon, Aug 31
Backorder
Get it by
Mon, Aug 3 - Mon, Aug 31
Add to List
961131-115 Compare Checkbox
Compare
O Ring Buna 11/16id X
SKU:
961131-115
Armstrong Pumps
SKU:
961131-115
Brand:
Armstrong Pumps
–
+
$18.59
each
ADD TO CART
Add to List
Backorder
Get it by
Mon, Aug 3 - Mon, Aug 31
Backorder
Get it by
Mon, Aug 3 - Mon, Aug 31
Add to List
190100-000 Compare Checkbox
Compare
Outer Casing O-ring (2 Per Pump) - Vms 03, 05
SKU:
190100-000
Armstrong Pumps
SKU:
190100-000
Brand:
Armstrong Pumps
–
+
$319.47
each
ADD TO CART
Add to List
Backorder
Get it by
Mon, Aug 3 - Mon, Aug 31
Backorder
Get it by
Mon, Aug 3 - Mon, Aug 31
Add to List
426124-031 Compare Checkbox
Compare
Casing Di 5x5x11.5 250#
SKU:
426124-031
Armstrong Pumps
SKU:
426124-031
Brand:
Armstrong Pumps
–
+
$4,332.97
each
ADD TO CART
Add to List
Backorder
Get it by
Tue, Aug 4 - Thu, Sep 3
Backorder
Get it by
Tue, Aug 4 - Thu, Sep 3
Add to List
D426595-002 Compare Checkbox
Compare
Relief Valve Packaged Hi Pressure Minfit 183-280
SKU:
D426595-002
Armstrong Pumps
SKU:
D426595-002
Brand:
Armstrong Pumps
–
+
$3,376.21
each
ADD TO CART
Add to List
Backorder
Get it by
Mon, Aug 3 - Mon, Aug 31
Backorder
Get it by
Mon, Aug 3 - Mon, Aug 31
Add to List
427422-101 Compare Checkbox
Compare
Adapter-lock Hdl Brs 4-6"da250
SKU:
427422-101
Armstrong Pumps
SKU:
427422-101
Brand:
Armstrong Pumps
–
+
$179.76
each
ADD TO CART
Add to List
Backorder
Get it by
Mon, Aug 3 - Mon, Aug 31
Backorder
Get it by
Mon, Aug 3 - Mon, Aug 31
Add to List
427218-041 Compare Checkbox
Compare
Impeller Bronze L 10x8x15 Mid-shroud
SKU:
427218-041
Armstrong Pumps
SKU:
427218-041
Brand:
Armstrong Pumps
–
+
$6,379.81
each
ADD TO CART
Add to List
Backorder
Get it by
Tue, Aug 4 - Thu, Sep 3
Backorder
Get it by
Tue, Aug 4 - Thu, Sep 3
Add to List
427175-041 Compare Checkbox
Compare
Impeller Bronze 4x3x13 M
SKU:
427175-041
Armstrong Pumps
SKU:
427175-041
Brand:
Armstrong Pumps
–
+
$2,954.82
each
ADD TO CART
Add to List
Backorder
Get it by
Tue, Aug 4 - Thu, Sep 3
Backorder
Get it by
Tue, Aug 4 - Thu, Sep 3
Add to List
8975000-98404K Compare Checkbox
Compare
Seal Kit ES 11.5" 1.625 2A
SKU:
8975000-98404K
Armstrong Pumps
SKU:
8975000-98404K
Brand:
Armstrong Pumps
–
+
$414.94
each
ADD TO CART
Add to List
Backorder
Get it by
Mon, Aug 3 - Mon, Aug 31
Backorder
Get it by
Mon, Aug 3 - Mon, Aug 31
Add to List
816174-841 Compare Checkbox
Compare
Casing Nlb H-66, H-67, H-68
SKU:
816174-841
Armstrong Pumps
SKU:
816174-841
Brand:
Armstrong Pumps
–
+
$3,655.11
each
ADD TO CART
Add to List
Backorder
Get it by
Tue, Aug 4 - Thu, Sep 3
Backorder
Get it by
Tue, Aug 4 - Thu, Sep 3
Add to List
110223-317 Compare Checkbox
Compare
Astro 250ci-r Circulating Pump, 110223-317
SKU:
110223-317
Armstrong Pumps
SKU:
110223-317
Brand:
Armstrong Pumps
–
+
$279.99
each
ADD TO CART
Add to List
In Stock
Get 1 by
Wed, Jul 8
In Stock
Get 1 by
Wed, Jul 8
Add to List
971900-003 Compare Checkbox
Compare
Shield-grease Rsv310-m4 50x8mm
SKU:
971900-003
Armstrong Pumps
SKU:
971900-003
Brand:
Armstrong Pumps
–
+
$34.76
each
ADD TO CART
Add to List
Backorder
Get it by
Mon, Aug 3 - Mon, Aug 31
Backorder
Get it by
Mon, Aug 3 - Mon, Aug 31
Add to List
427493-041 Compare Checkbox
Compare
Wearing Ring Bz 11.250id 1.38
SKU:
427493-041
Armstrong Pumps
SKU:
427493-041
Brand:
Armstrong Pumps
–
+
$2,794.54
each
ADD TO CART
Add to List
Backorder
Get it by
Tue, Aug 4 - Thu, Sep 3
Backorder
Get it by
Tue, Aug 4 - Thu, Sep 3
Add to List
150005 Compare Checkbox
Compare
Bushing Graphalloy 5/8x1x1-5/8
SKU:
150005
Armstrong Pumps
SKU:
150005
Brand:
Armstrong Pumps
–
+
$574.47
each
ADD TO CART
Add to List
Backorder
Get it by
Mon, Aug 3 - Mon, Aug 31
Backorder
Get it by
Mon, Aug 3 - Mon, Aug 31
Add to List
9272136-026 Compare Checkbox
Compare
Rotex 48/spider/98a/t-pur®/purple
SKU:
9272136-026
Armstrong Pumps
SKU:
9272136-026
Brand:
Armstrong Pumps
–
+
$108.38
each
ADD TO CART
Add to List
Backorder
Get it by
Mon, Aug 3 - Mon, Aug 31
Backorder
Get it by
Mon, Aug 3 - Mon, Aug 31
Add to List
923104-424 Compare Checkbox
Compare
Ring-rtng Ext Stainless Steel 11/16"d
SKU:
923104-424
Armstrong Pumps
SKU:
923104-424
Brand:
Armstrong Pumps
–
+
$42.99
each
ADD TO CART
Add to List
Backorder
Get it by
Mon, Aug 3 - Mon, Aug 31
Backorder
Get it by
Mon, Aug 3 - Mon, Aug 31
Add to List
911129-120 Compare Checkbox
Compare
Flange Bolts - 5/8-11x2 1/2
SKU:
911129-120
Armstrong Pumps
SKU:
911129-120
Brand:
Armstrong Pumps
–
+
$10.37
each
ADD TO CART
Add to List
Backorder
Get it by
Mon, Aug 3 - Mon, Aug 31
Backorder
Get it by
Mon, Aug 3 - Mon, Aug 31
Add to List
D145204-120 Compare Checkbox
Compare
Tank-dsl Dw 150usg Ul/ulc
SKU:
D145204-120
Armstrong Pumps
SKU:
D145204-120
Brand:
Armstrong Pumps
–
+
$25,565.96
each
ADD TO CART
Add to List
Backorder
Get it by
Tue, Aug 4 - Thu, Sep 3
Backorder
Get it by
Tue, Aug 4 - Thu, Sep 3
Add to List
8692522-001 Compare Checkbox
Compare
Head Replacement Steel 24" 2p #4 150#
SKU:
8692522-001
Armstrong Pumps
SKU:
8692522-001
Brand:
Armstrong Pumps
–
+
$29,836.64
each
ADD TO CART
Add to List
Backorder
Get it by
Tue, Aug 4 - Thu, Sep 3
Backorder
Get it by
Tue, Aug 4 - Thu, Sep 3
Add to List
D101166-002 Compare Checkbox
Compare
Seal Mech Type 21 1-1/2" Xp171
SKU:
D101166-002
Armstrong Pumps
SKU:
D101166-002
Brand:
Armstrong Pumps
–
+
$401.25
each
ADD TO CART
Add to List
Backorder
Get it by
Mon, Aug 3 - Mon, Aug 31
Backorder
Get it by
Mon, Aug 3 - Mon, Aug 31
Add to List
8692353-011 Compare Checkbox
Compare
Head Replacement Steel 10" 4p #3 400#
SKU:
8692353-011
Armstrong Pumps
SKU:
8692353-011
Brand:
Armstrong Pumps
–
+
$4,077.30
each
ADD TO CART
Add to List
Backorder
Get it by
Tue, Aug 4 - Thu, Sep 3
Backorder
Get it by
Tue, Aug 4 - Thu, Sep 3
Add to List
D251906-041 Compare Checkbox
Compare
Impeller Locknut "m"
SKU:
D251906-041
Armstrong Pumps
SKU:
D251906-041
Brand:
Armstrong Pumps
–
+
$316.01
each
ADD TO CART
Add to List
Backorder
Get it by
Mon, Aug 3 - Mon, Aug 31
Backorder
Get it by
Mon, Aug 3 - Mon, Aug 31
Add to List
911821-112 Compare Checkbox
Compare
Capscrew Steel 3/8-16ncx1
SKU:
911821-112
Armstrong Pumps
SKU:
911821-112
Brand:
Armstrong Pumps
–
+
$5.54
each
ADD TO CART
Add to List
Backorder
Get it by
Mon, Aug 3 - Mon, Aug 31
Backorder
Get it by
Mon, Aug 3 - Mon, Aug 31
Add to List
182212-656 Compare Checkbox
Compare
ARMflo E28.2B Bronze Circulator, 0-117 GPM Flow
SKU:
182212-656
Armstrong Pumps
SKU:
182212-656
Brand:
Armstrong Pumps
–
+
$3,604.18
each
ADD TO CART
Add to List
In Stock
Get 2 by
Thu, Jul 9 - Fri, Jul 10
In Stock
Get 2 by
Thu, Jul 9 - Fri, Jul 10
Add to List
427151-041 Compare Checkbox
Compare
Impeller Bronze 2x2x10 S
SKU:
427151-041
Armstrong Pumps
SKU:
427151-041
Brand:
Armstrong Pumps
–
+
$1,351.65
each
ADD TO CART
Add to List
Backorder
Get it by
Mon, Aug 3 - Mon, Aug 31
Backorder
Get it by
Mon, Aug 3 - Mon, Aug 31
Add to List
427318-001 Compare Checkbox
Compare
Assembly-base Frame S 14x30 -3" T1
SKU:
427318-001
Armstrong Pumps
SKU:
427318-001
Brand:
Armstrong Pumps
–
+
$453.41
each
ADD TO CART
Add to List
Backorder
Get it by
Mon, Aug 3 - Mon, Aug 31
Backorder
Get it by
Mon, Aug 3 - Mon, Aug 31
Add to List
8693465-072 Compare Checkbox
Compare
Hd Repl 316ss 04" 4p #3 300#
SKU:
8693465-072
Armstrong Pumps
SKU:
8693465-072
Brand:
Armstrong Pumps
–
+
$3,854.05
each
ADD TO CART
Add to List
Backorder
Get it by
Tue, Aug 4 - Thu, Sep 3
Backorder
Get it by
Tue, Aug 4 - Thu, Sep 3
Add to List
951004-500 Compare Checkbox
Compare
Conduit-flex 1-1/4" Liquidtite
SKU:
951004-500
Armstrong Pumps
SKU:
951004-500
Brand:
Armstrong Pumps
–
+
$6.22
each
ADD TO CART
Add to List
Backorder
Get it by
Mon, Aug 3 - Mon, Aug 31
Backorder
Get it by
Mon, Aug 3 - Mon, Aug 31
Add to List
939032-750 Compare Checkbox
Compare
Hose-braid Assembly L L=50" W/304
SKU:
939032-750
Armstrong Pumps
SKU:
939032-750
Brand:
Armstrong Pumps
–
+
$238.69
each
ADD TO CART
Add to List
Backorder
Get it by
Mon, Aug 3 - Mon, Aug 31
Backorder
Get it by
Mon, Aug 3 - Mon, Aug 31
Add to List
D975040-701 Compare Checkbox
Compare
Valve Chk 3/8"npt Stainless Steel Ballcone
SKU:
D975040-701
Armstrong Pumps
SKU:
D975040-701
Brand:
Armstrong Pumps
–
+
$752.43
each
ADD TO CART
Add to List
Backorder
Get it by
Mon, Aug 3 - Mon, Aug 31
Backorder
Get it by
Mon, Aug 3 - Mon, Aug 31
Add to List
939031-045 Compare Checkbox
Compare
Adapter-s Brs .5"jicm-.25"nptm
SKU:
939031-045
Armstrong Pumps
SKU:
939031-045
Brand:
Armstrong Pumps
–
+
$9.07
each
ADD TO CART
Add to List
Backorder
Get it by
Mon, Aug 3 - Mon, Aug 31
Backorder
Get it by
Mon, Aug 3 - Mon, Aug 31
Add to List
425030-011 Compare Checkbox
Compare
Fitting-grs Str 1/8np
SKU:
425030-011
Armstrong Pumps
SKU:
425030-011
Brand:
Armstrong Pumps
–
+
$13.29
each
ADD TO CART
Add to List
Backorder
Get it by
Mon, Aug 3 - Mon, Aug 31
Backorder
Get it by
Mon, Aug 3 - Mon, Aug 31
Add to List
IVS-TMLBLK-A2 Compare Checkbox
Compare
Ivs Terminal Block Kit, Chassis Size A2/a3
SKU:
IVS-TMLBLK-A2
Armstrong Pumps
SKU:
IVS-TMLBLK-A2
Brand:
Armstrong Pumps
–
+
$326.59
each
ADD TO CART
Add to List
Backorder
Get it by
Mon, Aug 3 - Mon, Aug 31
Backorder
Get it by
Mon, Aug 3 - Mon, Aug 31
Add to List
IVS-TMLBLK-E1 Compare Checkbox
Compare
Ivs Terminal Block Kit, Chassis Size E1
SKU:
IVS-TMLBLK-E1
Armstrong Pumps
SKU:
IVS-TMLBLK-E1
Brand:
Armstrong Pumps
–
+
$315.45
each
ADD TO CART
Add to List
Backorder
Get it by
Mon, Aug 3 - Mon, Aug 31
Backorder
Get it by
Mon, Aug 3 - Mon, Aug 31
Add to List
923104-440 Compare Checkbox
Compare
Ring-rtng Ext Stainless Steel 1.37
SKU:
923104-440
Armstrong Pumps
SKU:
923104-440
Brand:
Armstrong Pumps
–
+
$46.56
each
ADD TO CART
Add to List
Backorder
Get it by
Mon, Aug 3 - Mon, Aug 31
Backorder
Get it by
Mon, Aug 3 - Mon, Aug 31
Add to List
SERV427807-100 Compare Checkbox
Compare
Packaged Osha Guard Kit L (3b/3m)
SKU:
SERV427807-100
Armstrong Pumps
SKU:
SERV427807-100
Brand:
Armstrong Pumps
–
+
$741.60
each
ADD TO CART
Add to List
Backorder
Get it by
Mon, Aug 3 - Mon, Aug 31
Backorder
Get it by
Mon, Aug 3 - Mon, Aug 31
Add to List
939031-775 Compare Checkbox
Compare
Hose-braid Assembly S L=75" W/304
SKU:
939031-775
Armstrong Pumps
SKU:
939031-775
Brand:
Armstrong Pumps
–
+
$202.29
each
ADD TO CART
Add to List
Backorder
Get it by
Mon, Aug 3 - Mon, Aug 31
Backorder
Get it by
Mon, Aug 3 - Mon, Aug 31
Add to List
927122-100 Compare Checkbox
Compare
Washer-plain Steel 5/8
SKU:
927122-100
Armstrong Pumps
SKU:
927122-100
Brand:
Armstrong Pumps
–
+
$2.76
each
ADD TO CART
Add to List
Backorder
Get it by
Mon, Aug 3 - Mon, Aug 31
Backorder
Get it by
Mon, Aug 3 - Mon, Aug 31
Add to List
427164-841 Compare Checkbox
Compare
Impeller Zlb M 3x3x10
SKU:
427164-841
Armstrong Pumps
SKU:
427164-841
Brand:
Armstrong Pumps
–
+
$786.98
each
ADD TO CART
Add to List
Backorder
Get it by
Mon, Aug 3 - Mon, Aug 31
Backorder
Get it by
Mon, Aug 3 - Mon, Aug 31
Add to List
1
...
27
28
29
...
55
Resources
FAQs, Manuals & Videos
Videos
Replacing a Circulator Pump
Circulator Pump Flange Selection
Close Resources
Refresh
×
Video