ULABScientific Wide Mouth Unitary Wash Bottle, 250ml 500ml 2pcs for Each Size, Plastic Squeeze Bottles, LDPE Bottle with PP Draw Tube, UWB1009

These are not Nalgalene quality, but they aren't their price either! I REALLY only wanted a couple of 250 ml bottom feed wash bottles, but this package deal made the most value sense. Some of the reviews complain they are thin. Well, not so that they are unusable, and the 250ml ones, I don't notice it at all. I use them to hold hobby paint thinners (solvents) including xylene (with a silicone cap on the tip) and they work fine with no noticeable evaporation, even of acetone when stored at room temps. If I need more, I'd buy again.

I wanted two 500 ml bottles but I was confused - the tab says 500 ml unitary bottle but the picture shows 2-250ml and 2-500ml. The picture is correct. The price was still the best for the two 500ml unitary wash bottles that I wanted. One of the spouts was cracked on the 500ml, so I just replaced it from a 250ml bottle. I wanted these for watering plants. Now that I have them, I perhaps wish I had ordered a 1000ml wash bottle.

I purchased these for my airbrush cleaners. They seem to be of good quality and work as expected. Surprised to have them delivered in a clear bag with the label attached. I will buy more as my needs increase.

I used these in a lab for years, and they look like the same quality. I did receive one of the bottles with a broken spout. Someone must have really stressed this bottle, possibly during packing. I used some sealant gel to fix it which seems to have worked. I'm only planning on using these for water solutions.

They work as expected, use to clean pH meter, etc.

Great for alcohol and distilled water, but not naphthalene

I was looking for a bottle to distribute liquid to a very specific spot...this does the trick!

The value for the money the thickness the suction power are 5-star.

Another disgruntled customer. Both spouts on the 500ml bottle arrived cracked also the spout tubes on the bottles were cut far too short. This makes both bottles unusable. The enclosed note from ‘ULabs Scientific’ details them ‘supplying superior quality products’. Well judging by the number of negative comments regarding ‘splitting spouts’, perhaps their quality control department needs to ‘do their job’ and rectify this problem.Items returned for refund.

Unfortunately, the spout on one of the 500ml bottles was already split at the base when I opened the package and was separated from the bottle, effectively rendering the bottle useless. The spout of the other 500ml bottle split in exactly the same way after just a couple of uses.The 250ml bottles seem fine for now - the spouts feel better fitted and are properly water tight.

Spout split immediately when attached to the bottle. Sent back and money returned.

i use it for filling small sample cups very handy

THE CAP DOESNT FOR AN AIRTIGH SEAL,REQUIRES A RUBBER INSERT WASHER,