Silver Supplies prices are a little higher than the source I worked with in getting the exact same tubing. About $40 for 1 toz (about two 12-in tubings) vs Santa Fe's less than $31. The only caveat is that Santa Fe just ordered this so is taking pre-order with a 3-week lead time. It will then carry some as stock as soon as the first order arrives.
This was what I posted:
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With Indian Jewelry Supply being out of business, I have worked with the nice people at Santa Fe Jewelry Supply to offer the same 5.08mm OD / 4.37mm ID / 27 gauge sterling silver tubing!
It has a lead time of 4 weeks and they are taking pre order right now for the first batch! It's not on its website yet so you need to contact them – stock #118205. Give them a call:
https://www.sfjssantafe.com/
And got this additional info recently:
Take today's sterling silver market price and add the fabrication surcharge for the quantity you are purchasing. Each tubing weighs about 0.536 toz so you get almost two tubings per toz:
< 5 Toz add $14.15 (e.g. today SS is $16.74 so up to 5 toz is $30.89)
5+ Toz add $13.65
10+ Toz add $13.25
25+ Toz add $12.95
50+ Toz add $12.70
100+ Toz add $12.50