2 Sets Glass Tube Straight Connecting Adapter for Glass Pipe Joint，19/25 Ground Outer Standard Taper Joints for Laboratory Lab Supply

This is short, so I thought this will be less effective, but its actually better than the factory version. Cheap, sturdy, and fast shipping.

Love these were perfect for the use in which it was bought . Grateful 2 come in a package. Well cut and thankfully without the bottom plastic band .mthat annoys me these don’t have it and are perfect . Money well spent in my opinion

I don't think this adapter is designed with my use in mind. That said, these look to be good quality borosilicate glass and of similar thickness to my XQ2's accessories. The big difference is in the design and placement of the constrictor. This has a slightly smaller hole, letting air pass which is still more than adequate. For my use of heating herbal remedies, I find the thickness steals volume that could otherwise be used for more herb. And I prefer the OEM's "Connoiseur Bowl" that moves the constrictor down, closer to the heating element, almost doubling space for herb. Yet, these 5-6 for the price of OEM's 1. (I'm buying extras of these.) One more thing, another reviewer suggested these constrict airflow, limiting use to filling baloons. I don't have that problem, but a great work-around is to use a hose' "tee adapter", attach both a baloon <and> an inhalation whip, At The Same Time. With fan on, baloon begins to fill and acts as a buffer/cache for inhaling.

I wasn't sure if they would fit my vape,but they were the perfect fit. Came earlier than expected.well packaged.

Encajan perfecto, no son como el original en sus dimensiones, pero son totalmente funcionales.

I appreciate the quality but just wish one wasn't broken. I would buy more

The glass is well built, thick, good quality, and fits the Arizer ExtremeQ, which is why I didn't rate it 1 star. As a replacement for the same style of piece for the Arizer ExtremeQ, it fails. This piece keeps the material farther from the heating element, thus requiring higher temperature setting to vaporize the THC. This is a huge problem for me. I use the whip and directly draw from my vape. With the OEM Arizer part, I can vape at 180⁰c (356⁰f), with this piece I am unable to get any vapor until the element temperature reaches 200⁰c (392⁰f). This is an unacceptable temperature which burns both my throat and lungs to a point that I am wheezing and having troubles breathing. I replaced this piece with the OEM Arizer part, was able to lower temps back to 180⁰c and my breathing troubles and wheezing went away within 2 days. Usage amount was identical, only difference was swapping this piece for the original OEM arizer part. This piece and the higher temperature may be OK if you use the ExtremeQ to fill vapor balloons, but for use with the whip for direct draw, avoid this and get the correct one from Arizer. This piece was a waste of my money and time. Wish I could still return it, but I'm outside the return window.

For the price, these are not bad if you use it to fill a balloon/bag. The main difference between this and the OEM one besides the price is the hole on the OEM part is quite a bit larger. The hole on this product is about the size of a BB whereas the OEM part is about 3/8". For an emergency purchase, I can't complain.