The TRU-CONTOUR SECONDARY INVERT FORMING SYSTEM offers the manhole producer a very durable, systematic and versatile method of forming all invert configurations from 4” through 48” diameter.
Two, three and four way configurations including dead end combinations with a standard .2 ft. of elevation difference (fall) can be made easy and rapidly without the need for skilled labor.
•Versatile: four basic wedges create an unlimited number of combinations of any angle within 1.5 degrees
•Consistent: dimensional accuracy provided with flexibility to effectively form an invert which aligns perfectly with the entering pipeline
•Cuts costly labor both in set-up and concrete finishing time
•Durable: made with thermoplastic materials
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