Abstract: A tee coupling for coupling a handheld vacuum line to a main vacuum line of a commercial vacuum system without the need for external adapters includes a cylindrical main body portion with an axis, an inner diameter smaller than the outer diameter of the main vacuum line segments, a downstream end and an upstream end extending in opposite directions from the main body portion along the same axis, the downstream end and the upstream end each having an inner diameter at least as large as the outer diameter of a main vacuum line segment. a third end extending from the main body portion at an angle that is typically not a right angle from the axis; and a throat between the third end and the main body portion. The throat meets the main body portion at an angle that is not 90 degrees and is biased toward the downstream end.

Abstract: A vacuum tool connection assembly for connection to a commercial vehicle vacuum system that includes: a vacuum tool connection assembly hose having a first end and a second end; an upper assembly and a lower assembly having a tool connector where the tool connector engages a second end of the lower assembly swivel cuff and is typically adapted to receive one or a plurality of different types of vacuum tools. The vacuum tool engagement assembly is typically free of any flapper valve, metal or spring biased elements.

Abstract: A one-hand engageable vacuum tool connection assembly for connection to a commercial vehicle vacuum system that includes: a vacuum tool connection assembly hose having a first end and a second end; an upper assembly and a lower assembly having a tool connector where the tool connector engages a second end of the lower assembly swivel cuff and is typically adapted to receive one or a plurality of different types of vacuum tools. The vacuum tool engagement assembly is typically free of any flapper valve, metal or spring biased elements.

Abstract: A one-hand engageable vacuum tool connection assembly for connection to a commercial vehicle vacuum system that includes: a vacuum tool connection assembly hose having a first end and a second end; an upper assembly and a lower assembly having a tool connector where the tool connector engages a second end of the lower assembly swivel cuff and is typically adapted to receive one or a plurality of different types of vacuum tools. The vacuum tool engagement assembly is typically free of any flapper valve, metal or spring biased elements.

Abstract: A vacuum cyclonic separator that includes: a main body having a top surface with an air outlet, a bottom perimeter defining a bottom aperture of the main body, at least two downwardly facing air inlets and at least one side wall extending between the top surface and the bottom portion and shaped such that air received within an interior cavity of main body moves in a cyclone and wherein the at least two downwardly facing air inlets are in at least substantially the same plane as the bottom perimeter of the main body; and a dump valve assembly capable of being opened and closed with one hand where the dump valve is engaged with the bottom portion to seal the bottom aperture of the main body.