The 6in Soil Density Mold Collar fits the 6in Soil Density Mold (sold separately) for moisture density testing. This solid steel extension allows for additional soil to be compacted into the Mold then trimmed to size. This 6in (152mm) Mold Collar is also an accessory for the 6in Compaction Permeameter (sold separately) for use in falling head or constant head soil permeability testing.
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