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The VALTERRA PF187004 is a diverter stem designed as a replacement part for Nibco tub and shower valve assemblies. A diverter stem controls the flow direction between a bathtub spout and an overhead showerhead by actuating the internal diverter mechanism inside the valve body. This stem is a direct service replacement intended for use during faucet repair or valve rebuild work. Licensed plumbers and experienced service technicians are the primary installers for this type of component. It restores proper diverter function without requiring full valve body replacement.
The PF187004 fits tub and shower diverter valves found in residential bathroom plumbing systems. It is applicable in situations where the existing stem has worn, cracked, or failed to seal correctly, causing water to bypass the diverter and flow to both outlets simultaneously or fail to redirect at all. This replacement is suited for service calls involving Nibco-manufactured tub and shower valve trim and valve bodies.
Designed as an OEM-style replacement diverter stem for Nibco tub and shower valve assemblies.
Installation should be performed by a licensed plumber in accordance with local plumbing codes referencing IPC standards. Shut off the water supply to the affected fixture and open the faucet to relieve line pressure before disassembling the valve. Use appropriately sized stem removal tools to avoid damaging the valve body seat or surrounding trim. Inspect the valve seat and packing area for wear or debris before installing the new stem.
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