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 (120)
$5 to $10 (120)
$10 to $15 Filter (83)
$10 to $15 (83)
$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
805482-011 Compare Checkbox
Compare
Casing Ci S25
SKU:
805482-011
Armstrong Pumps
SKU:
805482-011
Brand:
Armstrong Pumps
–
+
$406.32
each
ADD TO CART
Add to List
Backorder
Get it by
Fri, Jul 31 - Fri, Aug 28
Backorder
Get it by
Fri, Jul 31 - Fri, Aug 28
Add to List
116904-000 Compare Checkbox
Compare
Gauge View
SKU:
116904-000
Armstrong Pumps
SKU:
116904-000
Brand:
Armstrong Pumps
–
+
$133.98
each
ADD TO CART
Add to List
Backorder
Get it by
Fri, Jul 31 - Fri, Aug 28
Backorder
Get it by
Fri, Jul 31 - Fri, Aug 28
Add to List
811757-002 Compare Checkbox
Compare
Resilient Mtd. Motor Assembly. - 1ph/3/4hp/115/230v
SKU:
811757-002
Armstrong Pumps
SKU:
811757-002
Brand:
Armstrong Pumps
–
+
$1,654.69
each
ADD TO CART
Add to List
In Stock
Get 3 by
Tomorrow, Jul 2
Total Available: 15
In Stock
Get 3 by
Tomorrow, Jul 2
Total Available: 15
Add to List
425512-000 Compare Checkbox
Compare
Coupling-split 1-1/8"x1-1/8"
SKU:
425512-000
Armstrong Pumps
SKU:
425512-000
Brand:
Armstrong Pumps
–
+
$1,182.95
each
ADD TO CART
Add to List
Backorder
Get it by
Fri, Jul 31 - Fri, Aug 28
Backorder
Get it by
Fri, Jul 31 - Fri, Aug 28
Add to List
604905-000 Compare Checkbox
Compare
Adj Sprt Assembly Steel 08" Htrs
SKU:
604905-000
Armstrong Pumps
SKU:
604905-000
Brand:
Armstrong Pumps
–
+
$225.73
each
ADD TO CART
Add to List
Backorder
Get it by
Fri, Jul 31 - Fri, Aug 28
Backorder
Get it by
Fri, Jul 31 - Fri, Aug 28
Add to List
870200-018 Compare Checkbox
Compare
Disc & Holder Assembly 18" (EPDM/cs)
SKU:
870200-018
Armstrong Pumps
SKU:
870200-018
Brand:
Armstrong Pumps
–
+
$14,603.60
each
ADD TO CART
Add to List
Backorder
Get it by
Mon, Aug 3 - Wed, Sep 2
Backorder
Get it by
Mon, Aug 3 - Wed, Sep 2
Add to List
427176-041 Compare Checkbox
Compare
Impeller Bronze L 4x3x13
SKU:
427176-041
Armstrong Pumps
SKU:
427176-041
Brand:
Armstrong Pumps
–
+
$2,422.66
each
ADD TO CART
Add to List
Backorder
Get it by
Fri, Jul 31 - Fri, Aug 28
Backorder
Get it by
Fri, Jul 31 - Fri, Aug 28
Add to List
74350036-164 Compare Checkbox
Compare
ECMI 4.0 Kw/3600/ 112/ip66/ie4
SKU:
74350036-164
Armstrong Pumps
SKU:
74350036-164
Brand:
Armstrong Pumps
–
+
$7,709.44
each
ADD TO CART
Add to List
Backorder
Get it by
Mon, Aug 3 - Wed, Sep 2
Backorder
Get it by
Mon, Aug 3 - Wed, Sep 2
Add to List
614236-011 Compare Checkbox
Compare
Hd Ci 18" 2p #2 150#
SKU:
614236-011
Armstrong Pumps
SKU:
614236-011
Brand:
Armstrong Pumps
–
+
$4,016.65
each
ADD TO CART
Add to List
Backorder
Get it by
Mon, Aug 3 - Wed, Sep 2
Backorder
Get it by
Mon, Aug 3 - Wed, Sep 2
Add to List
105184-000 Compare Checkbox
Compare
Conduit Box Cover
SKU:
105184-000
Armstrong Pumps
SKU:
105184-000
Brand:
Armstrong Pumps
–
+
$11.73
each
ADD TO CART
Add to List
Backorder
Get it by
Fri, Jul 31 - Fri, Aug 28
Backorder
Get it by
Fri, Jul 31 - Fri, Aug 28
Add to List
691302-001 Compare Checkbox
Compare
Gasket Hd 4" 4p Non Asb
SKU:
691302-001
Armstrong Pumps
SKU:
691302-001
Brand:
Armstrong Pumps
–
+
$70.14
each
ADD TO CART
Add to List
Backorder
Get it by
Fri, Jul 31 - Fri, Aug 28
Backorder
Get it by
Fri, Jul 31 - Fri, Aug 28
Add to List
426282-041 Compare Checkbox
Compare
Impeller Bronze M 4x3x11.5
SKU:
426282-041
Armstrong Pumps
SKU:
426282-041
Brand:
Armstrong Pumps
–
+
$2,297.92
each
ADD TO CART
Add to List
Backorder
Get it by
Mon, Aug 3 - Wed, Sep 2
Backorder
Get it by
Mon, Aug 3 - Wed, Sep 2
Add to List
691310-035 Compare Checkbox
Compare
Gasket 1 1/2" 150#ansi
SKU:
691310-035
Armstrong Pumps
SKU:
691310-035
Brand:
Armstrong Pumps
–
+
$53.31
each
ADD TO CART
Add to List
Backorder
Get it by
Fri, Jul 31 - Fri, Aug 28
Backorder
Get it by
Fri, Jul 31 - Fri, Aug 28
Add to List
8693477-011 Compare Checkbox
Compare
Head Replacement Steel 12" 4p #3 300#
SKU:
8693477-011
Armstrong Pumps
SKU:
8693477-011
Brand:
Armstrong Pumps
–
+
$4,512.68
each
ADD TO CART
Add to List
Backorder
Get it by
Mon, Aug 3 - Wed, Sep 2
Backorder
Get it by
Mon, Aug 3 - Wed, Sep 2
Add to List
427494-000 Compare Checkbox
Compare
Brg-Flanged Lwr Csg Brs/viton Xl
SKU:
427494-000
Armstrong Pumps
SKU:
427494-000
Brand:
Armstrong Pumps
–
+
$15,194.79
each
ADD TO CART
Add to List
Backorder
Get it by
Mon, Aug 3 - Wed, Sep 2
Backorder
Get it by
Mon, Aug 3 - Wed, Sep 2
Add to List
426554-000 Compare Checkbox
Compare
Support Foot Casing
SKU:
426554-000
Armstrong Pumps
SKU:
426554-000
Brand:
Armstrong Pumps
–
+
$119.42
each
ADD TO CART
Add to List
Backorder
Get it by
Fri, Jul 31 - Fri, Aug 28
Backorder
Get it by
Fri, Jul 31 - Fri, Aug 28
Add to List
9272136-027 Compare Checkbox
Compare
Rotex 55/spider/98a/t-pur®/purple
SKU:
9272136-027
Armstrong Pumps
SKU:
9272136-027
Brand:
Armstrong Pumps
–
+
$179.25
each
ADD TO CART
Add to List
Backorder
Get it by
Fri, Jul 31 - Fri, Aug 28
Backorder
Get it by
Fri, Jul 31 - Fri, Aug 28
Add to List
923104-425 Compare Checkbox
Compare
Ring Rtng Ext Stainless Steel 3/4" D
SKU:
923104-425
Armstrong Pumps
SKU:
923104-425
Brand:
Armstrong Pumps
–
+
$51.48
each
ADD TO CART
Add to List
Backorder
Get it by
Fri, Jul 31 - Fri, Aug 28
Backorder
Get it by
Fri, Jul 31 - Fri, Aug 28
Add to List
426412-407 Compare Checkbox
Compare
Volute Wear Ring, 426412-407
SKU:
426412-407
Armstrong Pumps
SKU:
426412-407
Brand:
Armstrong Pumps
–
+
$301.75
each
ADD TO CART
Add to List
Backorder
Get it by
Fri, Jul 31 - Fri, Aug 28
Backorder
Get it by
Fri, Jul 31 - Fri, Aug 28
Add to List
605356-000 Compare Checkbox
Compare
Adj Sprt Assembly Steel 04" Htrs
SKU:
605356-000
Armstrong Pumps
SKU:
605356-000
Brand:
Armstrong Pumps
–
+
$193.75
each
ADD TO CART
Add to List
Backorder
Get it by
Fri, Jul 31 - Fri, Aug 28
Backorder
Get it by
Fri, Jul 31 - Fri, Aug 28
Add to List
425740-011 Compare Checkbox
Compare
Bracket M/p Ci
SKU:
425740-011
Armstrong Pumps
SKU:
425740-011
Brand:
Armstrong Pumps
–
+
$4,245.91
each
ADD TO CART
Add to List
Backorder
Get it by
Mon, Aug 3 - Wed, Sep 2
Backorder
Get it by
Mon, Aug 3 - Wed, Sep 2
Add to List
939031-714 Compare Checkbox
Compare
Hose-braid Assembly S L=14" W/304
SKU:
939031-714
Armstrong Pumps
SKU:
939031-714
Brand:
Armstrong Pumps
–
+
$139.63
each
ADD TO CART
Add to List
Backorder
Get it by
Fri, Jul 31 - Fri, Aug 28
Backorder
Get it by
Fri, Jul 31 - Fri, Aug 28
Add to List
S-443 Compare Checkbox
Compare
Seal 810120-009, S-443
SKU:
S-443
Armstrong Pumps
SKU:
S-443
Brand:
Armstrong Pumps
–
+
$85.83
each
ADD TO CART
Add to List
In Stock
Get 9 by
Tomorrow, Jul 2
In Stock
Get 9 by
Tomorrow, Jul 2
Add to List
911129-122 Compare Checkbox
Compare
Capscrew Steel 5/8-11x2-3
SKU:
911129-122
Armstrong Pumps
SKU:
911129-122
Brand:
Armstrong Pumps
–
+
$8.99
each
ADD TO CART
Add to List
Backorder
Get it by
Fri, Jul 31 - Fri, Aug 28
Backorder
Get it by
Fri, Jul 31 - Fri, Aug 28
Add to List
419595-041 Compare Checkbox
Compare
Gland Plate
SKU:
419595-041
Armstrong Pumps
SKU:
419595-041
Brand:
Armstrong Pumps
–
+
$550.52
each
ADD TO CART
Add to List
Backorder
Get it by
Fri, Jul 31 - Fri, Aug 28
Backorder
Get it by
Fri, Jul 31 - Fri, Aug 28
Add to List
975000-934 Compare Checkbox
Compare
Seat-cer 1.125 W/ EPDM O-ring
SKU:
975000-934
Armstrong Pumps
SKU:
975000-934
Brand:
Armstrong Pumps
–
+
$156.32
each
ADD TO CART
Add to List
Backorder
Get it by
Fri, Jul 31 - Fri, Aug 28
Backorder
Get it by
Fri, Jul 31 - Fri, Aug 28
Add to List
D500200-200 Compare Checkbox
Compare
Analog Input Card Module
SKU:
D500200-200
Armstrong Pumps
SKU:
D500200-200
Brand:
Armstrong Pumps
–
+
$2,902.59
each
ADD TO CART
Add to List
Backorder
Get it by
Mon, Aug 3 - Wed, Sep 2
Backorder
Get it by
Mon, Aug 3 - Wed, Sep 2
Add to List
816393-045 Compare Checkbox
Compare
Impeller Bronze 6-1/2"
SKU:
816393-045
Armstrong Pumps
SKU:
816393-045
Brand:
Armstrong Pumps
–
+
$549.46
each
ADD TO CART
Add to List
Backorder
Get it by
Fri, Jul 31 - Fri, Aug 28
Backorder
Get it by
Fri, Jul 31 - Fri, Aug 28
Add to List
D145900-000 Compare Checkbox
Compare
Tank Diesel WhiSteele 2"x1-1/4"
SKU:
D145900-000
Armstrong Pumps
SKU:
D145900-000
Brand:
Armstrong Pumps
–
+
$145.79
each
ADD TO CART
Add to List
Backorder
Get it by
Fri, Jul 31 - Fri, Aug 28
Backorder
Get it by
Fri, Jul 31 - Fri, Aug 28
Add to List
8692523-001 Compare Checkbox
Compare
Head Replacement Steel 24" 4p #4 150#
SKU:
8692523-001
Armstrong Pumps
SKU:
8692523-001
Brand:
Armstrong Pumps
–
+
$27,432.63
each
ADD TO CART
Add to List
Backorder
Get it by
Mon, Aug 3 - Wed, Sep 2
Backorder
Get it by
Mon, Aug 3 - Wed, Sep 2
Add to List
880100-0C2 Compare Checkbox
Compare
Assembly-depc Ctl D Card Cvr C2 Nmd
SKU:
880100-0C2
Armstrong Pumps
SKU:
880100-0C2
Brand:
Armstrong Pumps
–
+
$4,478.93
each
ADD TO CART
Add to List
Backorder
Get it by
Mon, Aug 3 - Wed, Sep 2
Backorder
Get it by
Mon, Aug 3 - Wed, Sep 2
Add to List
427046-031 Compare Checkbox
Compare
Casing Di 1.5x1.5x8 250#
SKU:
427046-031
Armstrong Pumps
SKU:
427046-031
Brand:
Armstrong Pumps
–
+
$2,349.99
each
ADD TO CART
Add to List
Backorder
Get it by
Mon, Aug 3 - Wed, Sep 2
Backorder
Get it by
Mon, Aug 3 - Wed, Sep 2
Add to List
516887-231 Compare Checkbox
Compare
Cover Sg 4" Mach
SKU:
516887-231
Armstrong Pumps
SKU:
516887-231
Brand:
Armstrong Pumps
–
+
$222.29
each
ADD TO CART
Add to List
Backorder
Get it by
Fri, Jul 31 - Fri, Aug 28
Backorder
Get it by
Fri, Jul 31 - Fri, Aug 28
Add to List
427530-071 Compare Checkbox
Compare
Collar-lock Impeller 316Stainless Steel Xxl
SKU:
427530-071
Armstrong Pumps
SKU:
427530-071
Brand:
Armstrong Pumps
–
+
$965.22
each
ADD TO CART
Add to List
Backorder
Get it by
Fri, Jul 31 - Fri, Aug 28
Backorder
Get it by
Fri, Jul 31 - Fri, Aug 28
Add to List
D101166-110 Compare Checkbox
Compare
Seal-mech Type 21 Xf-171 (seal Only)
SKU:
D101166-110
Armstrong Pumps
SKU:
D101166-110
Brand:
Armstrong Pumps
–
+
$1,884.65
each
ADD TO CART
Add to List
Backorder
Get it by
Fri, Jul 31 - Fri, Aug 28
Backorder
Get it by
Fri, Jul 31 - Fri, Aug 28
Add to List
911900-124 Compare Checkbox
Compare
Eye-bolt Forged Steel 5/8-11
SKU:
911900-124
Armstrong Pumps
SKU:
911900-124
Brand:
Armstrong Pumps
–
+
$187.08
each
ADD TO CART
Add to List
Backorder
Get it by
Fri, Jul 31 - Fri, Aug 28
Backorder
Get it by
Fri, Jul 31 - Fri, Aug 28
Add to List
8692353-072 Compare Checkbox
Compare
Head Replacement Ss316 10" 4p #3 400#
SKU:
8692353-072
Armstrong Pumps
SKU:
8692353-072
Brand:
Armstrong Pumps
–
+
$16,904.07
each
ADD TO CART
Add to List
Backorder
Get it by
Mon, Aug 3 - Wed, Sep 2
Backorder
Get it by
Mon, Aug 3 - Wed, Sep 2
Add to List
D251908-071 Compare Checkbox
Compare
Gland Studbolt
SKU:
D251908-071
Armstrong Pumps
SKU:
D251908-071
Brand:
Armstrong Pumps
–
+
$36.75
each
ADD TO CART
Add to List
Backorder
Get it by
Fri, Jul 31 - Fri, Aug 28
Backorder
Get it by
Fri, Jul 31 - Fri, Aug 28
Add to List
426749-231 Compare Checkbox
Compare
Adapt Di 8"s 143-184jm 4.125"
SKU:
426749-231
Armstrong Pumps
SKU:
426749-231
Brand:
Armstrong Pumps
–
+
$596.64
each
ADD TO CART
Add to List
Backorder
Get it by
Fri, Jul 31 - Fri, Aug 28
Backorder
Get it by
Fri, Jul 31 - Fri, Aug 28
Add to List
911119-216 Compare Checkbox
Compare
Capscrew Steel 5/16-18x2"
SKU:
911119-216
Armstrong Pumps
SKU:
911119-216
Brand:
Armstrong Pumps
–
+
$4.82
each
ADD TO CART
Add to List
Backorder
Get it by
Fri, Jul 31 - Fri, Aug 28
Backorder
Get it by
Fri, Jul 31 - Fri, Aug 28
Add to List
D356497-000 Compare Checkbox
Compare
Snubber Pressure 1/2"npt 3/32"
SKU:
D356497-000
Armstrong Pumps
SKU:
D356497-000
Brand:
Armstrong Pumps
–
+
$448.01
each
ADD TO CART
Add to List
Backorder
Get it by
Fri, Jul 31 - Fri, Aug 28
Backorder
Get it by
Fri, Jul 31 - Fri, Aug 28
Add to List
9072112-024 Compare Checkbox
Compare
Rotex 65/ci/1/1.625/.375/ss
SKU:
9072112-024
Armstrong Pumps
SKU:
9072112-024
Brand:
Armstrong Pumps
–
+
$894.27
each
ADD TO CART
Add to List
Backorder
Get it by
Fri, Jul 31 - Fri, Aug 28
Backorder
Get it by
Fri, Jul 31 - Fri, Aug 28
Add to List
913129-100 Compare Checkbox
Compare
Flange Nuts - 5/8-11
SKU:
913129-100
Armstrong Pumps
SKU:
913129-100
Brand:
Armstrong Pumps
–
+
$4.83
each
ADD TO CART
Add to List
Backorder
Get it by
Fri, Jul 31 - Fri, Aug 28
Backorder
Get it by
Fri, Jul 31 - Fri, Aug 28
Add to List
9072112-006 Compare Checkbox
Compare
Rotex 38/ci/1/.875/.188/ss
SKU:
9072112-006
Armstrong Pumps
SKU:
9072112-006
Brand:
Armstrong Pumps
–
+
$269.59
each
ADD TO CART
Add to List
Backorder
Get it by
Fri, Jul 31 - Fri, Aug 28
Backorder
Get it by
Fri, Jul 31 - Fri, Aug 28
Add to List
8614236-011 Compare Checkbox
Compare
Head Replacement Ci 18" 2p #2 150#
SKU:
8614236-011
Armstrong Pumps
SKU:
8614236-011
Brand:
Armstrong Pumps
–
+
$15,571.03
each
ADD TO CART
Add to List
Backorder
Get it by
Mon, Aug 3 - Wed, Sep 2
Backorder
Get it by
Mon, Aug 3 - Wed, Sep 2
Add to List
426770-000 Compare Checkbox
Compare
Assembly-brg Frame S Oil Lube (un-Packaged)
SKU:
426770-000
Armstrong Pumps
SKU:
426770-000
Brand:
Armstrong Pumps
–
+
$1,077.28
each
ADD TO CART
Add to List
Backorder
Get it by
Mon, Aug 3 - Wed, Sep 2
Backorder
Get it by
Mon, Aug 3 - Wed, Sep 2
Add to List
927116-100 Compare Checkbox
Compare
Washer Steel 7/16" W
SKU:
927116-100
Armstrong Pumps
SKU:
927116-100
Brand:
Armstrong Pumps
–
+
$3.45
each
ADD TO CART
Add to List
Backorder
Get it by
Fri, Jul 31 - Fri, Aug 28
Backorder
Get it by
Fri, Jul 31 - Fri, Aug 28
Add to List
913121-100 Compare Checkbox
Compare
Nut-hex Steel 3/8-16unc
SKU:
913121-100
Armstrong Pumps
SKU:
913121-100
Brand:
Armstrong Pumps
–
+
$3.45
each
ADD TO CART
Add to List
Backorder
Get it by
Fri, Jul 31 - Fri, Aug 28
Backorder
Get it by
Fri, Jul 31 - Fri, Aug 28
Add to List
1
...
49
50
51
...
55
Resources
FAQs, Manuals & Videos
Videos
Replacing a Circulator Pump
Circulator Pump Flange Selection
Close Resources
Refresh
×
Video