Apply to be a TradeMaster!
Filter menu expanded

Filters

45 items
Reset

SORT

Product Availability
–

Show In Stock Only (39)

Connection Size
–

1/2" (6)
3/4" (11)
1" (5)
1-1/4" (4)
1-1/2" (5)
2" (5)
2-1/2" (3)
3" (3)
4" (1)

Material
–

Brass (4)
Bronze (24)
Cast Iron (13)
Stainless Steel (2)

Review Score
–

(17)
(8)
(1)

Price Range
–

$15 to $20 (4)
$20 to $25 (2)
$35 to $40 (6)
$40 to $45 (3)
$45 to $50 (1)
$50 to $60 (2)
$60 to $70 (2)
$70 to $80 (2)
$80 to $90 (3)
$90 to $100 (3)

Grundfos Pump Flanges

Help Face
Need a little help?
45 items
Grid
List
Compare
Product Image of 1" GF 15/26 Cast Iron Pump Flange Pair (NPT)
1" GF 15/26 Cast Iron Pump Flange Pair (NPT)
SKU: 519602
Grundfos
SKU: 519602
Brand: Grundfos
(36)
$19.02 each
In Stock
Get 357 by Tomorrow, Jun 26
In Stock
Get 357 by Tomorrow, Jun 26
Compare
Product Image of 3/4" GF 15/26 Iron Pump Flange Pair (NPT)
3/4" GF 15/26 Iron Pump Flange Pair (NPT)
SKU: 519601
Grundfos
SKU: 519601
Brand: Grundfos
(36)
$20.33 each
In Stock
Get 91 by Tomorrow, Jun 26
In Stock
Get 91 by Tomorrow, Jun 26
Compare
Product Image of 1/2" Bronze Sweat Union Set
1/2" Bronze Sweat Union Set
SKU: 529913
Grundfos
SKU: 529913
Brand: Grundfos
(4)
$43.28 each
In Stock
Get 16 by Tomorrow, Jun 26
In Stock
Get 16 by Tomorrow, Jun 26
Compare
Product Image of 1/2" GU 125 Union Bronze Isolation Valve Pair (Threaded)
1/2" GU 125 Union Bronze Isolation Valve Pair (Threaded)
SKU: 519850
Grundfos
SKU: 519850
Brand: Grundfos
(2)
$37.26 each
In Stock
Get 50 by Tomorrow, Jun 26
In Stock
Get 50 by Tomorrow, Jun 26
Compare
Product Image of 3/4" GU 125 Union Threaded End (Pair)
3/4" GU 125 Union Threaded End (Pair)
SKU: 529912
Grundfos
SKU: 529912
Brand: Grundfos
(6)
$43.28 each
In Stock
Get 29 by Tomorrow, Jun 26
In Stock
Get 29 by Tomorrow, Jun 26
Compare
Product Image of 1-1/4" GF 15/26 Cast Iron Pump Flange Pair (NPT)
1-1/4" GF 15/26 Cast Iron Pump Flange Pair (NPT)
SKU: 519603
Grundfos
SKU: 519603
Brand: Grundfos
(36)
$16.88 each
In Stock
Get 65 by Tomorrow, Jun 26
In Stock
Get 65 by Tomorrow, Jun 26
Compare
Product Image of 3/4" GU 125 Bronze Union Isolation Valve Pair (Threaded)
3/4" GU 125 Bronze Union Isolation Valve Pair (Threaded)
SKU: 519852
Grundfos
SKU: 519852
Brand: Grundfos
(10)
$42.34 each
In Stock
Get 24 by Tomorrow, Jun 26
In Stock
Get 24 by Tomorrow, Jun 26
Compare
Product Image of 3/4" GF 15/26 Bronze Flange Pair (NPT)
3/4" GF 15/26 Bronze Flange Pair (NPT)
SKU: 519651
Grundfos
SKU: 519651
Brand: Grundfos
(8)
$51.86 each
In Stock
Get 47 by Tomorrow, Jun 26
In Stock
Get 47 by Tomorrow, Jun 26
Compare
Product Image of 3/4" GU 125 Bronze Union Flange (Sweat)
3/4" GU 125 Bronze Union Flange (Sweat)
SKU: 529911
Grundfos
SKU: 529911
Brand: Grundfos
(2)
$46.22 each
In Stock
Get 26 by Tomorrow, Jun 26
In Stock
Get 26 by Tomorrow, Jun 26
Compare
Product Image of Replacement Gasket for 1/2" - 1" GF 15/26 Dielectric Isolation Valve (Pack of 2)
Replacement Gasket for 1/2" - 1" GF 15/26 Dielectric Isolation Valve (Pack of 2)
SKU: 99882655
Grundfos
SKU: 99882655
Brand: Grundfos
(3)
$18.05 each
In Stock
Get 38 by Tomorrow, Jun 26
In Stock
Get 38 by Tomorrow, Jun 26
Compare
Product Image of 1-1/2" GF 40/43 Cast Iron Flange Pair (NPT)
1-1/2" GF 40/43 Cast Iron Flange Pair (NPT)
SKU: 539605
Grundfos
SKU: 539605
Brand: Grundfos
(4)
$39.06 each
In Stock
Get 19 by Tomorrow, Jun 26
In Stock
Get 19 by Tomorrow, Jun 26
Compare
Product Image of 2" GF 50 Cast Iron Flange Pair (NPT)
2" GF 50 Cast Iron Flange Pair (NPT)
SKU: 96409354
Grundfos
SKU: 96409354
Brand: Grundfos
$106.95 each
In Stock
Get 34 by Tomorrow, Jun 26
In Stock
Get 34 by Tomorrow, Jun 26
Compare
Product Image of 1-1/2" GF 15/26 Iron Pump Flange Pair (NPT)
1-1/2" GF 15/26 Iron Pump Flange Pair (NPT)
SKU: 519604
Grundfos
SKU: 519604
Brand: Grundfos
(36)
$20.01 each
In Stock
Get 30 by Tomorrow, Jun 26
In Stock
Get 30 by Tomorrow, Jun 26
Compare
Product Image of 3/4" GF 15/26 Bronze Dielectric Isolation Valve Pair (Threaded)
3/4" GF 15/26 Bronze Dielectric Isolation Valve Pair (Threaded)
SKU: 96806130
Grundfos
SKU: 96806130
Brand: Grundfos
(9)
$70.22 each
In Stock
Get 18 by Tomorrow, Jun 26
In Stock
Get 18 by Tomorrow, Jun 26
Compare
Product Image of 1-1/2" GF 40/43 Bronze Flange Pair (NPT)
1-1/2" GF 40/43 Bronze Flange Pair (NPT)
SKU: 539615
Grundfos
SKU: 539615
Brand: Grundfos
(8)
$80.32 each
In Stock
Get 8 by Tomorrow, Jun 26
In Stock
Get 8 by Tomorrow, Jun 26
Compare
Product Image of 1" GF 15/26 Bronze Dielectric Isolation Valve Pair, No Lead (Sweat)
1" GF 15/26 Bronze Dielectric Isolation Valve Pair, No Lead (Sweat)
SKU: 96806136
Grundfos
SKU: 96806136
Brand: Grundfos
(7)
$95.38 each
In Stock
Get 33 by Tomorrow, Jun 26
In Stock
Get 33 by Tomorrow, Jun 26
Compare
Product Image of 1" GF 15/26 Bronze Flange Pair (NPT)
1" GF 15/26 Bronze Flange Pair (NPT)
SKU: 519652
Grundfos
SKU: 519652
Brand: Grundfos
(8)
$74.80 each
In Stock
Get 33 by Tomorrow, Jun 26
In Stock
Get 33 by Tomorrow, Jun 26
Compare
Product Image of 3/4" GF 15/26 Bronze Dielectric Isolation Valve Pair, Lead Free (Sweat)
3/4" GF 15/26 Bronze Dielectric Isolation Valve Pair, Lead Free (Sweat)
SKU: 96806135
Grundfos
SKU: 96806135
Brand: Grundfos
(1)
$81.26 each
In Stock
Get 31 by Tomorrow, Jun 26
In Stock
Get 31 by Tomorrow, Jun 26
Compare
Product Image of 1" GF 15/26 Bronze Dielectric Isolation Valve Pair, No Lead (Threaded)
1" GF 15/26 Bronze Dielectric Isolation Valve Pair, No Lead (Threaded)
SKU: 96806131
Grundfos
SKU: 96806131
Brand: Grundfos
(5)
$98.93 each
In Stock
Get 16 by Tomorrow, Jun 26
In Stock
Get 16 by Tomorrow, Jun 26
Compare
Product Image of 1-1/4" GF 15/26 Bronze Flange Pair (NPT)
1-1/4" GF 15/26 Bronze Flange Pair (NPT)
SKU: 96409356
Grundfos
SKU: 96409356
Brand: Grundfos
$87.92 each
In Stock
Get 2 by Tomorrow, Jun 26
In Stock
Get 2 by Tomorrow, Jun 26
Compare
Product Image of 1-1/4" GF 15/26 Bronze Dielectric Isolation Valve Pair (Threaded)
1-1/4" GF 15/26 Bronze Dielectric Isolation Valve Pair (Threaded)
SKU: 96806132
Grundfos
SKU: 96806132
Brand: Grundfos
(4)
$119.77 each
In Stock
Get 5 by Tomorrow, Jun 26
In Stock
Get 5 by Tomorrow, Jun 26
Compare
Product Image of 1-1/4" GF 15/26 Bronze Dielectric Isolation Valve Pair, No Lead (Sweat)
1-1/4" GF 15/26 Bronze Dielectric Isolation Valve Pair, No Lead (Sweat)
SKU: 96806137
Grundfos
SKU: 96806137
Brand: Grundfos
(5)
$128.86 each
In Stock
Get 13 by Tomorrow, Jun 26
In Stock
Get 13 by Tomorrow, Jun 26
Compare
Product Image of 3/4" Stainless Steel Pump Flange Kit (NPT)
3/4" Stainless Steel Pump Flange Kit (NPT)
SKU: 519660
Grundfos
SKU: 519660
Brand: Grundfos
$19.30 each
In Stock
Get 12 by Tomorrow, Jun 26
In Stock
Get 12 by Tomorrow, Jun 26
Compare
Product Image of 1/2" GF 15/26 Bronze Dielectric Isolation Valve Pair, No Lead (Sweat)
1/2" GF 15/26 Bronze Dielectric Isolation Valve Pair, No Lead (Sweat)
SKU: 96806134
Grundfos
SKU: 96806134
Brand: Grundfos
$62.00 each
In Stock
Get 3 by Tomorrow, Jun 26
In Stock
Get 3 by Tomorrow, Jun 26
Compare
Product Image of 1-1/2" GF 15/26 Bronze Dielectric Isolation Valve Pair, No Lead (Sweat)
1-1/2" GF 15/26 Bronze Dielectric Isolation Valve Pair, No Lead (Sweat)
SKU: 96806138
Grundfos
SKU: 96806138
Brand: Grundfos
(2)
$97.86 each
In Stock
Get 3 by Tomorrow, Jun 26
In Stock
Get 3 by Tomorrow, Jun 26
Compare
Product Image of 1-1/2" GF 15/26 Bronze Dielectric Isolation Valve Pair, No Lead (Threaded)
1-1/2" GF 15/26 Bronze Dielectric Isolation Valve Pair, No Lead (Threaded)
SKU: 96806133
Grundfos
SKU: 96806133
Brand: Grundfos
(1)
$121.40 each
In Stock
Get 3 by Tomorrow, Jun 26
In Stock
Get 3 by Tomorrow, Jun 26
Compare
Product Image of 1/2" GF 15/26 Bronze Dielectric Isolation Valve Pair, No Lead (Threaded)
1/2" GF 15/26 Bronze Dielectric Isolation Valve Pair, No Lead (Threaded)
SKU: 96806129
Grundfos
SKU: 96806129
Brand: Grundfos
(1)
$65.26 each
In Stock
Get 1 by Tue, Jun 30
In Stock
Get 1 by Tue, Jun 30
Compare
Product Image of 3/4" GU 125 Bronze Union Isolation Valve (Compression)
3/4" GU 125 Bronze Union Isolation Valve (Compression)
SKU: 519851
Grundfos
SKU: 519851
Brand: Grundfos
$52.74 each
In Stock
Get 2 by Tomorrow, Jun 26
In Stock
Get 2 by Tomorrow, Jun 26
Compare
Product Image of 1-1/4" Threaded Cast Iron Flange Set
1-1/4" Threaded Cast Iron Flange Set
SKU: 91122260
Grundfos
SKU: 91122260
Brand: Grundfos
(1)
$235.00 each
In Stock
Get 170 by Mon, Jun 29
In Stock
Get 170 by Mon, Jun 29
Compare
Product Image of 2-1/2" GF 53 Cast Iron Flange (NPT)
2-1/2" GF 53 Cast Iron Flange (NPT)
SKU: 91584911
Grundfos
SKU: 91584911
Brand: Grundfos
$149.83 each
In Stock
Get 10 by Tomorrow, Jun 26
In Stock
Get 10 by Tomorrow, Jun 26
Compare
Product Image of GF 53 Flange Pump Connection Adapter, Cast Iron , 2" NPT Connection
GF 53 Flange Pump Connection Adapter, Cast Iron , 2" NPT Connection
SKU: 91584910
Grundfos
SKU: 91584910
Brand: Grundfos
(1)
$157.21 each
In Stock
Get 35 by Mon, Jun 29
In Stock
Get 35 by Mon, Jun 29
Compare
Product Image of 3" GF 53 Cast Iron Flange Pair (NPT)
3" GF 53 Cast Iron Flange Pair (NPT)
SKU: 91584912
Grundfos
SKU: 91584912
Brand: Grundfos
$201.38 each
In Stock
Get 1 by Tomorrow, Jun 26
In Stock
Get 1 by Tomorrow, Jun 26
Compare
Product Image of 2" GF 50 Bronze Flange Pair (NPT)
2" GF 50 Bronze Flange Pair (NPT)
SKU: 96409355
Grundfos
SKU: 96409355
Brand: Grundfos
$455.69 each
In Stock
Get 4 by Tomorrow, Jun 26
In Stock
Get 4 by Tomorrow, Jun 26
Compare
Product Image of 2-1/2" GF 15/26 Cast Iron Union Flange Pair (NPT)
2-1/2" GF 15/26 Cast Iron Union Flange Pair (NPT)
SKU: 559601
Grundfos
SKU: 559601
Brand: Grundfos
$106.04 each
In Stock
Get 3 by Tomorrow, Jun 26
In Stock
Get 3 by Tomorrow, Jun 26
Compare
Product Image of 3" GF 80 Cast Iron Flange Pair (NPT)
3" GF 80 Cast Iron Flange Pair (NPT)
SKU: 569601
Grundfos
SKU: 569601
Brand: Grundfos
$273.76 each
In Stock
Get 1 by Tomorrow, Jun 26
In Stock
Get 1 by Tomorrow, Jun 26
Compare
Product Image of 2-1/2" GF 53 Bronze Flange Pair (NPT)
2-1/2" GF 53 Bronze Flange Pair (NPT)
SKU: 91584914
Grundfos
SKU: 91584914
Brand: Grundfos
$474.79 each
Backorder
Get it by Mon, Jul 27 - Mon, Aug 24
Backorder
Get it by Mon, Jul 27 - Mon, Aug 24
Compare
Product Image of 1" CED Cast Iron Spare Pump Flange
1" CED Cast Iron Spare Pump Flange
SKU: 98428397
Grundfos
SKU: 98428397
Brand: Grundfos
(36)
$185.80 each
In Stock
Get 3 by Mon, Jun 29
In Stock
Get 3 by Mon, Jun 29
Compare
Product Image of 2" GF 316 Stainless Steel Flange Set, 300 psi
2" GF 316 Stainless Steel Flange Set, 300 psi
SKU: 339919
Grundfos
SKU: 339919
Brand: Grundfos
$1,345.00 each
In Stock
Get 1 by Tomorrow, Jun 26
In Stock
Get 1 by Tomorrow, Jun 26
Compare
Product Image of 3/4" GU 125 PEX Expansion Union Kit, 93199929
3/4" GU 125 PEX Expansion Union Kit, 93199929
SKU: 93199929
Grundfos
SKU: 93199929
Brand: Grundfos
$38.24 each
Backorder
Get it by Mon, Jul 27 - Mon, Aug 24
Backorder
Get it by Mon, Jul 27 - Mon, Aug 24
Compare
Product Image of 4" GF 100 Cast Iron Flange Pair (NPT)
4" GF 100 Cast Iron Flange Pair (NPT)
SKU: 579801
Grundfos
SKU: 579801
Brand: Grundfos
$285.16 each
In Stock
Get 27 by Mon, Jun 29
In Stock
Get 27 by Mon, Jun 29
Compare
Product Image of 1/2" GU 125 PEX Crimp Union Kit, 93125844
1/2" GU 125 PEX Crimp Union Kit, 93125844
SKU: 93125844
Grundfos
SKU: 93125844
Brand: Grundfos
$38.24 each
Backorder
Get it by Mon, Jul 27 - Mon, Aug 24
Backorder
Get it by Mon, Jul 27 - Mon, Aug 24
Compare
Product Image of 3/4" GU 125 PEX Crimp Union Kit, 93125859
3/4" GU 125 PEX Crimp Union Kit, 93125859
SKU: 93125859
Grundfos
SKU: 93125859
Brand: Grundfos
$38.24 each
Backorder
Get it by Mon, Jul 27 - Mon, Aug 24
Backorder
Get it by Mon, Jul 27 - Mon, Aug 24
Compare
Product Image of 1/2" GU 125 PEX Expansion Union Kit, 93199923
1/2" GU 125 PEX Expansion Union Kit, 93199923
SKU: 93199923
Grundfos
SKU: 93199923
Brand: Grundfos
$38.24 each
Backorder
Get it by Mon, Jul 27 - Mon, Aug 24
Backorder
Get it by Mon, Jul 27 - Mon, Aug 24
Compare
Product Image of 2" GF 53 Bronze Flange Pair (NPT)
2" GF 53 Bronze Flange Pair (NPT)
SKU: 91584913
Grundfos
SKU: 91584913
Brand: Grundfos
$456.34 each
In Stock
Get 6 by Mon, Jun 29
In Stock
Get 6 by Mon, Jun 29
Compare
Product Image of 3" GF 53 Bronze Flange Pair (NPT)
3" GF 53 Bronze Flange Pair (NPT)
SKU: 91584915
Grundfos
SKU: 91584915
Brand: Grundfos
$594.50 each
Backorder
Get it by Mon, Jul 27 - Mon, Aug 24
Backorder
Get it by Mon, Jul 27 - Mon, Aug 24
Resources
FAQs, Manuals & Videos
Videos
Didn't find what you're looking for? 
Let us know
.
×

Video