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Knappco · Hydraulics
A121C
In stock · ships from Knoxville
The SureFlo A121C is a complete 1-port aerator assembly with a clear housing, designed to fluidize dry bulk powders like flour, cement, lime, and plastic pellets inside hopper trailers, rail cars, and silos.
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Verified fitment for 3 applications
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Inventory title 'MANIFOLD ASSY 1 POST' appears to be a mislabel; this part is a dry bulk aerator assembly, not a hydraulic manifold. Fits standard aerator mounting holes common across many bulk trailer brands.
Part data verified against 4 catalog sources
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It injects air through a rubber aerator disc to prevent material bridging and rat-holing, which speeds up unloading and reduces back pressure. The clear housing lets you visually inspect the aerator's operation. It's typically replaced when the rubber aerator wears out, the housing cracks, or the o-ring seal fails, causing air leaks or poor fluidization.
Part Number: A121C
MANIFOLD ASSY 1 POST (SUREFLO)
Unit: ea
Dealer: Post Onsite
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