Waterway 2" Diverter Valve Cap - New Style - Buttress 'Sawtooth' thread

Waterway 2" diverter valve cap - new Buttress style thread - "BUTTRESS" stamped/embossed on underside.
Available in white or grey - Notched (left), or grey Elite 5 Point Scallop (right).
These all interchange with each other - however the handle shape and texture is different and suits each cap style - if swapping cap style, the handle will also require replacement.
A difference can also be seen on the body.
The Buttress style diverter valves have a space above the top of the thread on the valve body, the old style does not.
Diameter of cap - 95mm, Height of the thread - 16mm, Cap Thread diameter 69.5mm ID
Buttress Thread - is a thread that is sloped on one side only (sawtooth), other side being at 90 degrees to the body of the thread.