Description
The T&S Brass B-3970-01 Lever Waste Valve is the foundational safety standard for large commercial basins. Designed with a 3-1/2″ sink opening and an integrated Overflow Assembly, it protects facilities against basin overfill and water damage. Constructed from heavy-duty cast bronze with a stainless steel strainer and faceplate, it is engineered for high-cycle industrial usage in independent restaurants and hospitals. The remote lever-action provides a hygienic solution for draining prep sinks without manual contact with waste water.
Technician’s Note: The overflow assembly is a mandatory safety feature in many municipal jurisdictions. During installation, ensure the overflow tubing is routed with a consistent slope to the drain body. Use a high-quality plumbing sealant on the 3-1/2″ flange for a watertight basin seal. Polished stainless steel finish is resistant to grease and high heat common in professional dishrooms. Includes 1-1/2″ NPT adapter for universal fit.
- Feature: Integrated Sink Overflow.
- Sink Opening: 3-1/2″ Diameter.
- Outlet: 1-1/2″ NPT Adapter.
- Control: Lever Remote Drain.
- Reliability: Heavy-Duty industrial Grade.






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