| http://www.w3.org/ns/prov#value | - A filter cleaning system for use with a filter having a front and a back, the front defining an open plenum, the filter cleaning system comprising: (a) a fluid manifold; (b) a valve arranged in fluid communication with the fluid manifold; (c) a nozzle configured to receive a primary fluid jet from the fluid manifold by operation of the valve, the nozzle including a diffuser that separates the prim
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