What size is the fuse on a watermaster/orbit sprinkler timer box? Blinking red

Question

I've got a "watermaster" old sprinkler timer box.  Fuse blew, it's got a blinking red light, what replacement fuse can I use?
Appears same size as this box:
https://www.youtube.com/watch?v=xgYUyxFnlaY
It says "750mA slow burn" near the fuse location.

rogerdpack · Accepted Answer

OK I tried some out from home depot and "5mm by 20mm 1A fast burn" was the closest they stock and seemed to work OK for me.
Appears the canonical replacement is "orbit 57003" but they're sometimes tricky to find/more expensive.  Might be able to find some equivalents online as well.

What size is the fuse on a watermaster/orbit sprinkler timer box? Blinking red

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