SP Bel-Art Right-to-Know Safety-Vented/Labeled 4-Color LYOB Wide-Mouth Wash Bottles; 500ml (16oz), Polyethylene w/Natural Polypropylene Cap (Pack of 4) (F11816-0009),White

I have bought several sets of these and use them in the wood shop to hold all sorts of chemicals. Just make sure that when you put something in them for the first time to let it settle for about 24 hours before you screw the lid down tight. It will explain this in the manual. This wont apply to all chemicals but some will need to settle or they will cause the pressure inside to push the liquid out the tube. This wont happen after the chemical settles for about a day. Just something to keep in mind.

This was a cheaply made bottle. It was difficult to squeeze, and the top of the bottle's seal cracked opened making it unusable. I barely used the bottle for less than a month before this happened. This happened to all four bottles in the pack. Waste of money. I would give zero stars if I could.

vent did not work for MEK. I found that almost all of the MEK I had put into one of these bottles slowed leaked out due to vent system not vent the pressure difference.

Worked perfectly except one of the bottles came with missing parts.

Perfect size for our Alcohol

I am missing two slide valves so only two of the bottles are functional

One of the only lab bottles I have used in over 20 years that doesn't leak without modifications. Nice big NFPA and other safety labels ready to go. I went back and bought a bunch of these for everyone in our labs.

I don't understand this bottle. No matter what I do, the bottle leaks at least 4 to 5 drops after use. I am using acetone and yes, of course I read the instructions on putting the bottle together. There are only 3 parts so it isn't something I can make a mistake on. I even had Amazon ship me another batch of bottles and those leak as well. Customer support from Bel-Art is terrible. They won't even support their own products if not purchased directly through them. Bel-Art should spend less time making kitsch videos of kids using the bottles as a watergun and spending time making a simple product work. I have "non-vented" squeeze bottles that don't leak at all so this setup is bizarre and doesn't work.