Multidose Vial Adapter

[verylargeshoes]

I would not put them anywhere near oil with BB. There is pic here of that particular model cracking while in service.

I had one in a vial of test prop 100 in MCT oil that after a couple of weeks could no longer hold negative pressure so I couldn’t fill through it. I probably only actually pulled through it 3-4 times. I have no reason to believe that was an especially caustic brew.

 

[TurboJet]

So this is like trying to use a condom to be safe but you got it of the tack board and kept it in your wallet for a few years....

It made her feel better about it so that still counts

 

[TurboJet]

So this is like trying to use a condom to be safe but you got it of the tack board and kept it in your wallet for a few years....

It made her feel better about it so that still counts

 

[TurboJet]

 

[archive]

I had ordered some of these before I saw the reports of them failing. Decided to go ahead and try it.

So far, no failures. Use them for about a month at a time. Perhaps I have lower solvent oil.

I'll probably look for alternatives once these run out, I probably get enough microplastics elsewhere.

I also ordered some of these Braun adapters a while ago except I got the model with the red tips and smaller vent filters.

I've used two so far with daily pins. The first lasted about 3 months before the luer lock srcrew on receptacle started to crack off. That easily could have been ape-handed user error from over tightening the syringe. That was pulling GA TC250 for what it matters.

The second is still going strong at about 3 months of daily pins. I've been trying to be careful with how I connect the syringe on this one. This one's pulling a different oil. It's a domestic TPP 150.

I plan on using these unless I notice corrosion on the inside of these adapters

 

[Ateam2023]

these have given me no problems, Meds lab supply

 

[hexagonal]

I had ordered some of these before I saw the reports of them failing. Decided to go ahead and try it.

So far, no failures. Use them for about a month at a time. Perhaps I have lower solvent oil.

I'll probably look for alternatives once these run out, I probably get enough microplastics elsewhere.

I did end up having issues that I strongly suspect were caused by BB leeching the polycarb into the oil. Likely started just a week or so after this post, even. Jinxed myself, I suppose!

H

Post in thread '(US) Vendor gear found with dissolved brewing equipment (Plastic)'

Oct 8, 2025

How toxic is this?
I have no idea, however I have zero plans to inject from any vendor that has any products containing dissolved plastic.

I keep meaning to post this in one of the threads where those inline filter multidose adapters got suggested but keep forgetting, since last I posted about them they had been fine and that I planned to use up the ones I had purchased. But since this directly reminded me:

I'm fairly certain the BB dissolving the polycarb in them resulted in sterile abscesses at the injection sites. It ended up impacting me in 4 places. I didn't notice the...

• hexagonal

• 

 

[Bammdk]

So backloading slin pins is off? Or 1-3 days ok? Or use a sertan type?

 

[Elektrobot]

So what using a metal hub needle as a fixed vial access device?

A plastic hub needle would obviously have the same problems as the plastic vial access devices

But an all metal needle like these?

Heavy Metal

Or

I think this one is actually for dead people

And then what if someone made a 3d printer pattern for some sort of holding device at the top so you don't have to finger it every time

Or even better yet.... made a machinable pattern. The second one I linked has a hex head. It would be easy to design a vial top with a female hex pattern for that sucker to drop right down into

 

[5TheNegative]

So I have learned the cheap vial spikes are no good, and that I should not be prefilling a week of pins.

Rough.

 

[Juicedhead]

I'll see your multi dose vial adapter and up you with pressure equalizing ventilation utilizing bacteria filtered air, as well as a fluid particle filter, protective cap, and a valve that closes to stop flow when syringe is detached.

View attachment 287052


View attachment 287051

do you have to use a new one every time you do a shot?

 

[Elektrobot]

So I have learned the cheap vial spikes are no good, and that I should not be prefilling a week of pins.

Rough.

Maybe not the best idea with oils. I'd avoid it unless you are traveling and don't' want to take your vials or something.

 

[5TheNegative]

Maybe not the best idea with oils. I'd avoid it unless you are traveling and don't' want to take your vials or something.

That's how it started, and I really liked it, so I kept doing it. Now I have been looking into vial spikes so that I can continue with my easy daily pins but less steps. It seems that the vial spikes may or may not be ideal for oil now too.

 

[Ateam2023]

do you have to use a new one every time you do a shot?

Something about multi use comes into mind so I don't think you changed it every time

 

[Ateam2023]

That's how it started, and I really liked it, so I kept doing it. Now I have been looking into vial spikes so that I can continue with my easy daily pins but less steps. It seems that the vial spikes may or may not be ideal for oil now too.

I use the vile spikes from med lab supply and I haven't had any problems, but then again you can't see leaching plastic right,

 

[5TheNegative]

I use the vile spikes from med lab supply and I haven't had any problems, but then again you can't see leaching plastic right, View attachment 371646

Those are the ones I have been leaning towards after going through about 40 pages of vial spike info. That looks bigger than a 10ml vial, how long are you using that one for? I was really hoping to add one to a 50ml vial so I can filter my oil and dump it all into one vial.

 

[Ateam2023]

Those are the ones I have been leaning towards after going through about 40 pages of vial spike info. That looks bigger than a 10ml vial, how long are you using that one for? I was really hoping to add one to a 50ml vial so I can filter my oil and dump it all into one vial.

That is a 30 ml vial

 

[Elektrobot]

That's how it started, and I really liked it, so I kept doing it. Now I have been looking into vial spikes so that I can continue with my easy daily pins but less steps. It seems that the vial spikes may or may not be ideal for oil now too.

Oil starts to break down rubber pretty quickly. Is it really worth saving the 30 seconds it takes to wipe a vial top and draw?

 

[5TheNegative]

Oil starts to break down rubber pretty quickly. Is it really worth saving the 30 seconds it takes to wipe a vial top and draw?

No, its not worth it.

Thats why I'm on the hunt for the vial spike that won't also break down. I value my 30 seconds a little too much.

 

[Elektrobot]

hunt for the vial spike that won't also break down

Nobody has found this elusive creature yet. Every vial spike people here have found also break down in oil.

If you find a vial spike that doesn't break down in oil, please share it here with everyone.