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The TS BRASS 000789-20 is a removable insert designed for the cold (left hand) position of the Eterna cartridge series. The insert ships with a washer and is intended as a direct service replacement for faucet cartridge assemblies. It is certified to NSF 61 Section 9 and NSF 372, confirming compliance with drinking water contact material safety and lead-free requirements. Licensed plumbers and commercial kitchen equipment technicians typically handle cartridge insert replacements during routine maintenance or in response to seat wear and drip failure.
This insert fits all TS BRASS faucets equipped with the Eterna cartridge design. It is suited for both commercial and light-duty institutional plumbing applications where Eterna-style cartridges are the standard service component. The left hand designation identifies it as the cold-side insert, which must be matched correctly during replacement to maintain proper handle orientation and flow direction.
Designed for use in all TS BRASS faucets equipped with the Eterna cartridge system, specifically in the cold (left hand) insert position.
Shut off the water supply and relieve line pressure before beginning cartridge insert service. A licensed plumber should perform this work in commercial or institutional settings to meet local plumbing code requirements. Confirm left hand (cold) orientation before seating the insert to avoid incorrect handle-to-flow mapping. Inspect the cartridge seat for scoring or damage before installing the replacement insert.
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