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Manufacturer
Check Valves
![15000CV1 Check Valve Image](/images//products/Check-Valve-AY-McDonald.jpg)
15000CV1 Check Valve
1 in. MNPT x 1 in. MNPT
Only $57.85
![15000CV12 Check Valve Image](/images//products/Check-Valve-AY-McDonald.jpg)
15000CV12 Check Valve
1-1/4 in. MNPT x 1-1/4 in. FNPT
Only $65.00
Free Shipping
![500D Ductile Iron Check Valve Image](/images//products/Ductile-Iron-Valve-Breakoff-AY-McDonald.jpg)
500D Ductile Iron Check Valve
3 or 4 in.
Starting at $469.95
![500MS Silicon Bronze Check Valve Image](/images//products/ay-mcdonald-6814-197.jpg)
500MS Silicon Bronze Check Valve
1 - 2 in. FNPT x 1-1/4 - 2 in. MNPT
Starting at $35.84
![500MSS Stainless Steel Check Valve Image](/images//products/ay-mcdonald-6814-195.jpg)
500MSS Stainless Steel Check Valve
1 or 1-1/4 in. FNPT x 1-1/4 in. MNPT
Starting at $59.15
![500SB Silicon Bronze Check Valve Image](/images//products/ay-mcdonald-6814-197.jpg)
500SB Silicon Bronze Check Valve
400 PSI, 1/2 - 2 -1/2 in. FNPT
Starting at $31.17
![540SB Silicon Bronze Check Valve with Taps Image](/images//products/ay-mcdonald-6814-197.jpg)
540SB Silicon Bronze Check Valve with Taps
1 - 2 in. FNPT
Starting at $78.00
![Breakoff Plug Only for 500D Check Valve Image](/images//products/Breakoff-Plug-AY-McDonald.jpg)
Breakoff Plug Only for 500D Check Valve
Only $61.10
Free Shipping
![Ductile Iron Check Valve Image](/images//products/ay-mcdonald-6200-200.jpg)
Ductile Iron Check Valve
Starting at $89.70
![Ductile Iron Check Valve Stemless Image](/images//products/ay-mcdonald-6814-327.jpg)
Ductile Iron Check Valve Stemless
1 - 6 in.
Starting at $30.14
![Silicon Bronze Check Valve Image](/images//products/ay-mcdonald-6814-197.jpg)
Silicon Bronze Check Valve
1 or 1-1/4 in. FNPT
Starting at $88.40
![Silicon Bronze Check Valve Image](/images//products/ay-mcdonald-6814-327.jpg)
Silicon Bronze Check Valve
1 or 1-1/4 in.
Starting at $38.96
![Silicon Bronze Check Valve Stemless Image](/images//products/ay-mcdonald-6814-327.jpg)
Silicon Bronze Check Valve Stemless
3/4 - 2 in.
Starting at $50.70