The 3/8" to 1/2" to 1/4" section makes my teeth itch, but it's what's available.
If it’s any consolation, some of our most advanced scientific kit at work making the most sensitive measurements ever made end up looking like that because of stupid meaningless pipe sizes and their associated ridiculous threads.
@Jonny69 started
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The 3/8" to 1/2" to 1/4" section makes my teeth itch, but it's what's available.