Krueger Sentry Gauge OFS1-2-21 Level 1 Overfill Gauge, Type OF-S1, 21 in.

This model of pop up overfill alert gauge (stainless level one) has standard stainless steel wetted rods, polypropylene floats, and aluminum bushing. This mechanical overfill alert gauge is custom made in house to fit your overfill depth requirements. They are designed to pop up at a specific level (usually 90 percent) and warn you that the tank is almost full. Provides visual overfill warning.

• Stainless Steel Rods
• HDPE or Polypropylene Float
• Aluminum bushing
• Type - OF-S1
• Bushing Size - 2 in.
• Depth - 21 in.
• Dimension - 36 x 6 x 3 in.