K7669 Leak Gauge Extension Length 0 in Float Material Polypropylene For Container Capacity No Exact Capacity For Container Depth 72 in For Container Type No Specific Style For Liquid Type Diesel Gasoline Hydraulic Oil Graduation Marks Not Applicable Includes Not Applicable Increment of Variation Not Applicable Pipe Size 2 in Assembly Nut Material HDPE Bushing Material Aluminum Features Designed to Detect Leaks in Double Wall Containment Systems Interstitial Spaces and Monitoring Pipes