The StormTech Dual Wall HDPE Fittings Manual outlines various dual wall fabrication scenarios with corresponding measurements.

The first is a dual wall fabricated “soil tight” “plain end” single manifold 6”-24” diameter with diagram and chart detailing part #, pipe size, chamber size, A & B sizing.

Next is a dual wall fabricated “soil tight” single manifold 12”-24” diameter with diagram and chart detailing part #, pipe size, chamber size, A, B & C sizing.

Also listed are dual wall fabricated “soil tight” single manifold “12”-24” diameter, dual wall fabricated “soil tight” “plain end” double manifold “6”-24” diameter, dual wall fabricated “soil tight” double manifold “12”-24” diameter, dual wall fabricated “soil tight” “plain end” triple manifold “6”-24” diameter, dual wall fabricated “soil tight” “plain end” 90 degree manifold bend “6”-24” diameter, dual wall fabricated “soil tight” elbows “12”-24” diameter, dual wall fabricated “soil tight” elbows “12”-24” diameter, dual wall fabricated “soil tight” “plain end” reducing single manifold “8”-24” diameter, dual wall fabricated “soil tight” single reducing manifold “15”-24” diameter, dual wall fabricated “soil tight” single reducing manifold “15”-24” diameter, dual wall fabricated “soil tight” “plain end” reducing double manifold “8”-24” diameter, dual wall fabricated “soil tight” double reducing manifold “15”-24” diameter, dual wall fabricated “soil tight” “plain end” reducing triple manifold “8”-24” diameter, dual wall fabricated “soil tight” “plain end” reducing single manifold “8”-18” diameter, dual wall fabricated “soil tight” “plain end” reducing single manifold “24”-48” diameter, dual wall fabricated “soil tight” single reducing manifold “30”-36” diameter, dual wall fabricated “soil tight” single reducing manifold “42”-48” diameter, dual wall fabricated “soil tight” “plain end” reducing double manifold “8”-28” diameter, dual wall fabricated “soil tight” “plain end” reducing double manifold “24”-48” diameter, dual wall fabricated “soil tight” double reducing manifold “30”-36” diameter, dual wall fabricated “soil tight” double reducing manifold “42”-48” diameter, dual wall fabricated “soil tight” “plain end” reducing triple manifold “8”-18” diameter, dual wall fabricated “soil tight” “plain end” reducing triple manifold “24”-48” diameter, storm chamber “soil tight” end caps-top & bottom and storm chamber “soil tight” extended prefab end cap stub lengths.