• For 3" sink openings
  • 2” NPT male outlet; adapter for 1 1/2” NPT
  • Twist handle

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Adapter Yes
Basket Drain Size 3 Inches
Drain Outlet Size 1 1/2 - 2 Inches
Type Twist Waste Valves


Install a convenient and useful drain in your sink with the T&S B-3940 3" rotary waste valve! This waste valve comes with a twist handle for easy operation, and its 3" sink opening is connected to a 2" NPT male outlet. An included adapter can also change the inlet to 1 1/2" NPT for user convenience.

WARNING: This product contains chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm.

  • CSA


    This item meets the standards imposed by the Canadian Standards Association (CSA).

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