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The genuine Shurflo check valve assembly for select 2088 Series diaphragm pumps. It's the built-in check valve that keeps liquid from flowing back through the pump and into the tank when the pump stops. A worn or fouled check valve can cause loss of prime, backflow, or a pump that cycles on its own.
Check your model. Not every 2088 pump uses this check valve. Match your pump's model number to the list below. The 2088-394-144 uses a different check valve (94-237-00).
| Part Number | Shurflo 94-237-05 |
| Parts Diagram | Item #3 |
| Fits | Shurflo 2088-313-145, 2088-343-135 and 2088-394-154 |
How do I know the check valve is bad?
Common signs are a pump that loses prime after sitting, liquid draining back into the tank, or a demand pump that keeps cycling on and off with the spray valve closed. Debris in the valve is a frequent cause, so a 50-mesh inlet strainer helps prevent it.
Should I service anything else while the pump is open?
Check the 94-232-05 valve assembly for debris or swelling too. Always drain and flush the pump before working on it.

MODEL: 94-237-05
$22.99
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