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You are here: Home > Plumbing Supplies > Check Valves
A PVC check valve prevents water from flowing backwards into the pond should the pump stop pushing (due to power failure).  Use a check valve for plumbing above ground external pumps and upflow filters.
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Check Valve 1-1/2" slip Check Valve 2" slip
Our Price: $23.00
Our Price: $30.00
Check Valve 1-1/2 inch Check Valve 2 inch
1-1/2" spring check valve, slip fit.  
Saltwater safe. Maintenance free operation. Check valves allow water to flow in one direction.
2" spring check valve, slip fit.  
Saltwater safe. Maintenance free operation. Check valves allow water to flow in one direction.
Check Valve 1-1/4" slip Check Valve 1-1/4" FPT
Our Price: $19.00
Our Price: $19.00
Check valve 1-1/4 inch Check Valve 1-1/4 inch FPT
1-1/4" spring check valve, slip fit.  
Saltwater safe. Maintenance free operation. Check valves allow water to flow in one direction.
1-1/4" spring check valve, FPT fit.  
Saltwater safe. Maintenance free operation. Check valves allow water to flow in one direction.
Check Valve 1-1/2" FPT Check Valve 2" FPT
Our Price: $23.00
Our Price: $30.00
Check Valve 1-1/2 inch FPT Check Valve 2 inch FPT
1-1/2"spring check valve, FPT fit.  
Saltwater safe. Maintenance free operation. Check valves allow water to flow in one direction.
2" spring check valve, FPT fit.  
Saltwater safe. Maintenance free operation. Check valves allow water to flow in one direction.
Oase Y Distributor Check Valve 1" FPT
Our Price: $44.98
Our Price: $15.00
Oase Y Distributor Check Valve 1 inch FPT
Oase Y distributor.  Main inlet is 2" MPT with barb fittings from 3/4" to 2" included. Outlets are 1-1/2" MPT with barb fittings from 1" to 1-1/2". 1" spring check valve, FPT fit.  
Saltwater safe. Maintenance free operation. Check valves allow water to flow in one direction.
Check Valve 1/2" FPT Check Valve 3/4" FPT
Our Price: $11.00
Our Price: $11.00
Check Valve 1/2 inch FPT Check Valve 3/4 inch FPT
1/2" spring check valve, FPT fit.  
Saltwater safe. Maintenance free operation. Check valves allow water to flow in one direction.
3/4" spring check valve, FPT fit.  
Saltwater safe. Maintenance free operation. Check valves allow water to flow in one direction.