401-2 Borosilicate Glass Drying Tube with One Bulb, 150mm Length

I really don’t know chick I dated for a bit wanted them think it was emvrimental or she was just mental 😜

I actually modified it to use as a reflux condenser, and it works great. Borosilicate this thick is generally five times the price point, so, yeah, I’m a happy customer.

Product arrived broken haven't spoke to customer service yet so for now one star will update based on that experience also received the wrong size tube

I've used this to heat ammonium chloride powder at least thirty times over the past two months. It's taken the heat from a propane torch many times without any sign of wearing out. I bought a second one as a backup in case it breaks from use, but so far it's held on strong. I've also supported it by holding a rubber stopper connected to the smaller stem when in use, and I've had no problems.