Not sure if sch 80 but while back was looking around for 1.5" and Innovative Plastics Marketing Ltd (12920 Yellowhead Trail Northwest, Edmonton, AB T5L 3C1 (780) 454-8162) and Wolseley (5721 -125th Avenue Edm 780 471 0092) both stocked some massive heavy duty bulkheads of different sizes.
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