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
4000CVR-361 Compare Checkbox
Compare
Motor-fan Cover 360t - Ab Prem
SKU:
4000CVR-361
Armstrong Pumps
SKU:
4000CVR-361
Brand:
Armstrong Pumps
–
+
$199.24
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
105210-841 Compare Checkbox
Compare
Flange Bronze 2
SKU:
105210-841
Armstrong Pumps
SKU:
105210-841
Brand:
Armstrong Pumps
–
+
$113.12
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
827013-000 Compare Checkbox
Compare
Packaged Coupler Assembly 6j 1.375"x.875"
SKU:
827013-000
Armstrong Pumps
SKU:
827013-000
Brand:
Armstrong Pumps
–
+
$522.71
each
ADD TO CART
Add to List
In Stock
Get 1 by
Mon, Jul 6
In Stock
Get 1 by
Mon, Jul 6
Add to List
850504-170 Compare Checkbox
Compare
Standard Kit Hsc 5 X 4 X 17
SKU:
850504-170
Armstrong Pumps
SKU:
850504-170
Brand:
Armstrong Pumps
–
+
$2,657.95
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
426413-407 Compare Checkbox
Compare
Wearing Ring Bronze 4.768id .687
SKU:
426413-407
Armstrong Pumps
SKU:
426413-407
Brand:
Armstrong Pumps
–
+
$298.70
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
174026-100 Compare Checkbox
Compare
Starter Box 115/1/60 Nema1 Gla
SKU:
174026-100
Armstrong Pumps
SKU:
174026-100
Brand:
Armstrong Pumps
–
+
$434.85
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
961131-036 Compare Checkbox
Compare
O Ring - Module
SKU:
961131-036
Armstrong Pumps
SKU:
961131-036
Brand:
Armstrong Pumps
–
+
$6.36
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
427407-071 Compare Checkbox
Compare
Flapper-disch 316Stainless Steel 3"da
SKU:
427407-071
Armstrong Pumps
SKU:
427407-071
Brand:
Armstrong Pumps
–
+
$285.28
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
426132-031 Compare Checkbox
Compare
Casing Di 8x8x11.5 250#
SKU:
426132-031
Armstrong Pumps
SKU:
426132-031
Brand:
Armstrong Pumps
–
+
$8,199.99
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
691310-045 Compare Checkbox
Compare
Gasket 12"-150#ansi
SKU:
691310-045
Armstrong Pumps
SKU:
691310-045
Brand:
Armstrong Pumps
–
+
$415.03
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
8692520-001 Compare Checkbox
Compare
Head Replacement Steel 22" 2p #4 150#
SKU:
8692520-001
Armstrong Pumps
SKU:
8692520-001
Brand:
Armstrong Pumps
–
+
$29,707.60
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
9072112-021 Compare Checkbox
Compare
Rotex 55/ci/1a/2.125/.500/ss
SKU:
9072112-021
Armstrong Pumps
SKU:
9072112-021
Brand:
Armstrong Pumps
–
+
$426.21
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
951004-200 Compare Checkbox
Compare
Conduit-flex 1/2" Liquid Tite
SKU:
951004-200
Armstrong Pumps
SKU:
951004-200
Brand:
Armstrong Pumps
–
+
$4.12
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
870400-018 Compare Checkbox
Compare
Packing 18" (EPDM)
SKU:
870400-018
Armstrong Pumps
SKU:
870400-018
Brand:
Armstrong Pumps
–
+
$946.26
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
816303-317K Compare Checkbox
Compare
5.25" Impeller Kit
SKU:
816303-317K
Armstrong Pumps
SKU:
816303-317K
Brand:
Armstrong Pumps
–
+
$514.09
each
ADD TO CART
Add to List
In Stock
Get 3 by
Mon, Jul 6
Total Available: 9
In Stock
Get 3 by
Mon, Jul 6
Total Available: 9
Add to List
939031-740 Compare Checkbox
Compare
Hose-braid Assembly S L=40" W/304
SKU:
939031-740
Armstrong Pumps
SKU:
939031-740
Brand:
Armstrong Pumps
–
+
$160.38
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
573008-008 Compare Checkbox
Compare
Replacement Bladder For A1400-l
SKU:
573008-008
Armstrong Pumps
SKU:
573008-008
Brand:
Armstrong Pumps
–
+
$8,877.13
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
427164-011 Compare Checkbox
Compare
Impeller Ci 3x3x10 M
SKU:
427164-011
Armstrong Pumps
SKU:
427164-011
Brand:
Armstrong Pumps
–
+
$1,666.94
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
D251900-071 Compare Checkbox
Compare
Brg Retainer
SKU:
D251900-071
Armstrong Pumps
SKU:
D251900-071
Brand:
Armstrong Pumps
–
+
$152.15
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
427183-017 Compare Checkbox
Compare
Casing Ci 6x6x13h 125#
SKU:
427183-017
Armstrong Pumps
SKU:
427183-017
Brand:
Armstrong Pumps
–
+
$6,918.16
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
426717-011 Compare Checkbox
Compare
Pedestal-int Ci 10" S
SKU:
426717-011
Armstrong Pumps
SKU:
426717-011
Brand:
Armstrong Pumps
–
+
$6,618.15
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
8975002-334K Compare Checkbox
Compare
Seal Kit 1.625 Ab2 C-Stainless Steel Carbon W/Cover, 8975002-334K
SKU:
8975002-334K
Armstrong Pumps
SKU:
8975002-334K
Brand:
Armstrong Pumps
–
+
$1,433.70
each
ADD TO CART
Add to List
In Stock
Get 1 by
Mon, Jul 6
Total Available: 3
In Stock
Get 1 by
Mon, Jul 6
Total Available: 3
Add to List
D110938-120 Compare Checkbox
Compare
Packing Gland Bolt
SKU:
D110938-120
Armstrong Pumps
SKU:
D110938-120
Brand:
Armstrong Pumps
–
+
$25.18
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
427270-018 Compare Checkbox
Compare
Guard Coupling 10-16
SKU:
427270-018
Armstrong Pumps
SKU:
427270-018
Brand:
Armstrong Pumps
–
+
$106.01
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
8693474-011 Compare Checkbox
Compare
Head Replacement Steel 10" 4p #3 300#
SKU:
8693474-011
Armstrong Pumps
SKU:
8693474-011
Brand:
Armstrong Pumps
–
+
$5,050.41
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
426528-008 Compare Checkbox
Compare
Base Assembly-v.i.l.casing Support
SKU:
426528-008
Armstrong Pumps
SKU:
426528-008
Brand:
Armstrong Pumps
–
+
$7,607.29
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
426410-011 Compare Checkbox
Compare
Gasket-Flange Nitrile 5"-150#
SKU:
426410-011
Armstrong Pumps
SKU:
426410-011
Brand:
Armstrong Pumps
–
+
$21.38
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
8606119-041 Compare Checkbox
Compare
Hd Repl Bronze 04" 2p #1 150# Stm
SKU:
8606119-041
Armstrong Pumps
SKU:
8606119-041
Brand:
Armstrong Pumps
–
+
$2,005.18
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
426156-031 Compare Checkbox
Compare
Casing Di 6x5x11.5 250#
SKU:
426156-031
Armstrong Pumps
SKU:
426156-031
Brand:
Armstrong Pumps
–
+
$3,679.99
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
113240 Compare Checkbox
Compare
Ring-terminal #8 Wire Sb 3/8"
SKU:
113240
Armstrong Pumps
SKU:
113240
Brand:
Armstrong Pumps
–
+
$17.61
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
74350041-164 Compare Checkbox
Compare
ECMI 5.5 Kw/3600/ 112/ip66/ie4
SKU:
74350041-164
Armstrong Pumps
SKU:
74350041-164
Brand:
Armstrong Pumps
–
+
$8,262.57
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
818254-003K Compare Checkbox
Compare
#2 Bearing Assembly w/ Impeller (Maintenance Free)
SKU:
818254-003K
Armstrong Pumps
SKU:
818254-003K
Brand:
Armstrong Pumps
–
+
$346.57
each
ADD TO CART
Add to List
In Stock
Get 1 by
Tomorrow, Jul 3
Total Available: 7
In Stock
Get 1 by
Tomorrow, Jul 3
Total Available: 7
Add to List
426766-011 Compare Checkbox
Compare
Cover-brg Ob Ci S Grease
SKU:
426766-011
Armstrong Pumps
SKU:
426766-011
Brand:
Armstrong Pumps
–
+
$109.65
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
939001-108 Compare Checkbox
Compare
Conn-male Str Brs 1/4
SKU:
939001-108
Armstrong Pumps
SKU:
939001-108
Brand:
Armstrong Pumps
–
+
$17.34
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
4000TBX-140 Compare Checkbox
Compare
Motor-terminal Box 140t
SKU:
4000TBX-140
Armstrong Pumps
SKU:
4000TBX-140
Brand:
Armstrong Pumps
–
+
$52.03
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
604803-000 Compare Checkbox
Compare
Adj Sprt Assembly Steel 18" Htrs
SKU:
604803-000
Armstrong Pumps
SKU:
604803-000
Brand:
Armstrong Pumps
–
+
$632.05
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
961180-125 Compare Checkbox
Compare
O Ring Viton 1 5/16id
SKU:
961180-125
Armstrong Pumps
SKU:
961180-125
Brand:
Armstrong Pumps
–
+
$13.86
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
570196-105 Compare Checkbox
Compare
Cbv/ftv Seat 5"
SKU:
570196-105
Armstrong Pumps
SKU:
570196-105
Brand:
Armstrong Pumps
–
+
$18.04
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
975000-995 Compare Checkbox
Compare
Packaged Seal 1.875 Jc21 O28f12-1o1
SKU:
975000-995
Armstrong Pumps
SKU:
975000-995
Brand:
Armstrong Pumps
–
+
$2,034.89
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
975001-800 Compare Checkbox
Compare
Coupling Sleeve 3ja Neo Cmpd A
SKU:
975001-800
Armstrong Pumps
SKU:
975001-800
Brand:
Armstrong Pumps
–
+
$13.98
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
D975030-007 Compare Checkbox
Compare
Pressure Reduction Valve 2"
SKU:
D975030-007
Armstrong Pumps
SKU:
D975030-007
Brand:
Armstrong Pumps
–
+
$3,602.21
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
110119MF-101 Compare Checkbox
Compare
H-51-3 3-Series AB Maintenance Free Bronze In-Line Pump, 1/4 HP (Lead Free)
SKU:
110119MF-101
Armstrong Pumps
SKU:
110119MF-101
Brand:
Armstrong Pumps
–
+
$3,063.01
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
426461-011 Compare Checkbox
Compare
Gland-split (s) Ci 1.125
SKU:
426461-011
Armstrong Pumps
SKU:
426461-011
Brand:
Armstrong Pumps
–
+
$382.28
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
116524LF-137A Compare Checkbox
Compare
H-68-3 3-Phase All Bronze In-Line Pump, 1-1/2 HP (Lead Free)
SKU:
116524LF-137A
Armstrong Pumps
SKU:
116524LF-137A
Brand:
Armstrong Pumps
–
+
$5,705.06
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
427761-608 Compare Checkbox
Compare
Guard-tc Osha Steel 180-250 S
SKU:
427761-608
Armstrong Pumps
SKU:
427761-608
Brand:
Armstrong Pumps
–
+
$64.60
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
8606917-041 Compare Checkbox
Compare
Head Replacement Bronze 14" 4p #1 125#
SKU:
8606917-041
Armstrong Pumps
SKU:
8606917-041
Brand:
Armstrong Pumps
–
+
$13,782.82
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
975002-408 Compare Checkbox
Compare
Armstrong Seal-mech 1.125 T70 Sc-sc316-af
SKU:
975002-408
Armstrong Pumps
SKU:
975002-408
Brand:
Armstrong Pumps
–
+
$805.99
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
427325-280 Compare Checkbox
Compare
Kit-hold Down Motor 250t 280t/ts
SKU:
427325-280
Armstrong Pumps
SKU:
427325-280
Brand:
Armstrong Pumps
–
+
$26.37
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
1
...
23
24
25
...
55
Resources
FAQs, Manuals & Videos
Videos
Replacing a Circulator Pump
Circulator Pump Flange Selection
Close Resources
Refresh
×
Video