Kohler K-2590 Guide D'installation page 5

Valve Assembly
3. Install the Valve Assembly
Using thread sealant tape, wrap the end of the water supply line.
IMPORTANT! When disconnecting the control stop from the valve
assembly, the gasket will fall out from the end of the valve assembly.
Retain the gasket.
Disconnect the control stop from the valve assembly. Retain the
gasket from the valve assembly.
Attach the control stop to the water supply line.
Reinsert the gasket into the end of the valve assembly.
Reconnect the control stop to the valve assembly.
Kohler Co.
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Control Stop
Gasket
5 1267569-2-A