That is indeed a dipstick. The unfortunate thing about dipsticks is the vast difference in thicknesses (sp?) available. Unlike sweeper bristles or wiper inserts, which are available in a closely approximate thickness, dipsticks vary from being very flimsy (usually for auto transmissions) to very sturdy (usually engine oil dipsticks...some are made from 3/16" steel rod)
I have various pieces of dipstick material about 15ft behind me, but I'm darn sure I'm not getting out of this chair to measure them.
Anyone else want to take up this task?
I guess what I'm trying to convey, is that finding the 'correct' dipstick is pretty much pot-luck.
Quick tip though...the auto trans dipsticks are normally pretty close to what we want them for.
If it ain't broke.....pull it down and see how it works anyway!