The Wavcor Manhole aeration attachment, made by a Canadian company, is designed as a low-cost upgrade for farmers to add to their grain handling systems.
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A new easy conversion of hopper bins to aeration
The removable Wavcor Manhole aeration attachment is designed as a low-cost upgrade for farmers to add to their grain handling systems

Wavcor introduces Manhole Aeration System
Many farms have older hopper-bottom bins without aeration systems, which limits their usefulness. A new system from Saskatoon-based Wavcor provides a low-cost way to do that.