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The TS BRASS 000812-25M200 / NAPSD BULK is a cold-side (left-hand) replacement stem designed for TS Brass Eterna-series faucets. The stem controls cold water flow and is the internal component that connects handle movement to the seat, regulating water on and off. This is an OEM-style replacement part used to restore proper valve function when the original stem is worn, cracked, or leaking. Licensed plumbers and experienced service technicians handle this type of repair in commercial and institutional plumbing systems where Eterna-series faucets are commonly installed.
This stem is suited for cold-water side repairs on TS Brass Eterna faucets found in commercial restrooms, institutional facilities, and foodservice environments. The left-hand (LH) designation indicates this stem is for the cold supply side of the valve body. Confirm the side and model compatibility before installation, as hot-side and cold-side stems are not interchangeable. This part is sold as a bulk pack as indicated by the NAPSD BULK designation in the part number.
Designed as an OEM-style cold-side stem replacement for TS Brass Eterna-series faucets. Verify exact model compatibility using the TS Brass Eterna parts documentation before ordering.
Installation should be performed by a licensed plumber in accordance with applicable local plumbing codes and IPC guidelines. Shut off the water supply and relieve line pressure completely before disassembling the valve body. Inspect the seat and packing before installing the new stem, and replace ancillary components as needed to prevent repeat service calls. Do not force the stem during installation, as cross-threading or overtightening can damage the valve body.
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