The one pictured !
Is older, it has a screw type hose connection, similar to an Apex, you turn the knurled area and the rubber ring swells up and holds it into the cleaner, the next generation had a rubber cuff with a pushbutton type thing, this was used thru the first swiveltops.
Is older, it has a screw type hose connection, similar to an Apex, you turn the knurled area and the rubber ring swells up and holds it into the cleaner, the next generation had a rubber cuff with a pushbutton type thing, this was used thru the first swiveltops.