cleantech do one as well
its under fittings ( alloy brush adapter)they made it up withe a vikin brush an one of the goose necks the put a alloy cone one the top pf the pole as well
The problem with most brushes is not the attachment of the brush to the pole as this just screws off but the hose attached to the back of the brush. Sometimes this just will not come off by hand and needs to be warmed up in a cup of hot water to release from the back of the jets. If there was an inline snap connector in the hose as it comes out of the pole and then branches into the 2 back of brush jets, that would be great.