Are quarter turn ball valves of the same size (say 3/4" interchangeable from brand A to brand B? Or are they all different?

Suppose I want to change some handles of my existing valves to say butterfly style handles, can I just buy some generic valve butterfly handles and change them out?

it is 'pot luck'

this is why plumbers always save valve handles from old valves

i used to have several 5 gal pails of them



........ as the raven said; nev'rmore

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Retired U.A. Local 1 & 638
"Measure Twice & Cut Once"

five gallon buckets of handles? wow that's a lot of handles.

..... i used to have several 5 gal pails of them AND OTHER MISC. PARTS such as valve bonnets and valve gates .....

'somewhat' organized and 'sorted' by pail, or not really ....................

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Retired U.A. Local 1 & 638
"Measure Twice & Cut Once"