Isopropanol Self-Venting Safety Wash Bottles, 4pcs of Vol.500ml, Narrow Mouth Squeeze Bottle, LDPE Material with PP Material Closure, 5511.0471.4

Bottles need to have their feed tube attached before they can be used. Otherwise, quality product. Will use to dispense 99% isopropanol for cleaning aluminum sheets before spray painting with epoxy anti-corrosion primer.

These are very well made with great labeling. I wish they came with standard lids to use when not in use.

These are self-venting safety wash bottles designed for laboratory use. They feature a wide-mouth design for easy filling and an angled nozzle for precise dispensing. The bottles are made from LDPE material, while the closures are crafted from PP material. I like the simple functionality of these, squeeze and the liquid comes out.

These wash bottles are sturdy and easy to use, but they do not have any volume markers on the side of the bottle. I do wish they were priced cheaper. If the bottle is full, the stem molded on the lid sometimes continues to spray after you’ve stopped pushing on the bottle. I think these are a good solution for an educational environment, which is where I will be using them, I just don’t know how much they’ll hold up over few semesters.

Okay, I plan on using these for my plants, as this pack of wash bottles was so much more economical than those for plants.That aside, the pressure on these bottles is really nice and the spray of water is constant and smooth. Also, the plastic of the bottles isn't too brittle to make it hard to squeeze in your hand.

After you let go of the bottle it continues to spray out liquid, about a tablespoon worth. We've been keeping these on top of small rags to catch the excess, but it's a pain in the butt.

I was looking for a bottle that would help me water and feed my aero garden as I didn't like using a 1-gallon jug to do that so when I saw these I figured I would give them a shot. They came packaged just fine with no defects that I could see. Getting it out you get four bottles, four lids, and four straws. Getting the plant-food/water in them was just fine and I only had to gently squeeze to push it out. I did have to take the lid off and dump it in but that's because I let the water get a bit too low. All in all, these are great bottles if you need to water something or use it for the aerogarden.

Looks good but will discuss in a year, hopefully they don’t yellow