Focustronic bulk replacement parts thread (Mastertronic / Alkatronic / Dosetronic)

[socal_48]

I have one and am looking for the same. Needles are still not easy to find. I bought the punch and sheet from the earlier pages but am still waiting on the silicone mat.. that's actually not the easiest to find either. Looks like it ships from china.

This is what I ordered last year, has worked out great for me. I changed the silicone seal every time I refill the reagents.

 

[kenchilada]

Anyone have a source for the correct PTFE-lined silicon sheets for making septas?

 

[kenchilada]

Anyone have a source for the correct PTFE-lined silicon sheets for making septas?

Or maybe this is easier... can someone confirm these would work?

https://www.aliexpress.us/item/3256804326897734.html

100 PTFE & white silicon septas for $24

 

[zbryant91]

Or maybe this is easier... can someone confirm these would work?

https://www.aliexpress.us/item/3256804326897734.html

100 PTFE & white silicon septas for $24

I have a pack of these that I've been using. https://www.aliexpress.us/item/2255800016203486.html

Vent Needles seem to be clogging more often than when I used the plain silicone ones. But the silicone also seemed to break down on a couple of the reagents. Also, I put mine in with the ptfe side facing the reagent, maybe it needs to be the other way around?

 

[Etherpete]

Thinking about pulling the trigger. Tagging along.

 

[zbryant91]

I have a pack of these that I've been using. https://www.aliexpress.us/item/2255800016203486.html

Vent Needles seem to be clogging more often than when I used the plain silicone ones. But the silicone also seemed to break down on a couple of the reagents. Also, I put mine in with the ptfe side facing the reagent, maybe it needs to be the other way around?

Also would like to add that the ones I bought are a bit too thick. Makes them a bit tighter going into the carousel.

Oddly enough I have a set of new vials from a replacement mastertronic, they all seem to be just silicone, without the ptfe. So I put those on today and left a couple with ptfe but I put ptfe up this time to see if I can cut down on clogging.

Also ordered more needles and a couple silicone replacements from coralvue because they are a bit cheaper. Just want to see what silicone comes, but I'm betting it's just regular silicone without ptfe.

 

[kenchilada]

Any vials available on AliExpress that fit?

 

[kenchilada]

Any vials available on AliExpress that fit?

I might roll the dice on these:

$13.77 5％ Off | EPA Vials For Sample Storage Brown Chromatography Vial 20 mL Parse Reagent Bottle 27.5*57 mm With Cover 22 mm and Septa 10 / PK

https://a.aliexpress.com/_m0FITQU

Think they’ll work?

 

[tmccaff]

Any idea where to get the external hoses? I looked at bulkreefsupply but looks like they dont have the 3.2mm size.

Will this work for the external hoses:

BRS Drew's Doser Tubing - Pre-Cut

Extension tube for Drew's Doser. Drew's Dosers extension tubing is great for replacing your current worn out, old tubing, or simply just replacing the tubing you have for a new additive. Specifications Outside Diameter: 1/4" Inside Diameter: 1/8" Two Lengths Available 25 foot 50 foot

www.bulkreefsupply.com

 

[tmccaff]

I might roll the dice on these:

$13.77 5％ Off | EPA Vials For Sample Storage Brown Chromatography Vial 20 mL Parse Reagent Bottle 27.5*57 mm With Cover 22 mm and Septa 10 / PK

https://a.aliexpress.com/_m0FITQU

Think they’ll work?

They look like the same. Cheap let me know if they work. I might try it, lol

 

[BreezyMM]

Just purchased this silicone sheet for the septas. It is basically a lifetime supply. Plan is to just change it out every time I refill the reagent.

 

[tmccaff]

This will work for the Mastertronic? Looking for replacement of the external hoses.

 

[kenchilada]

This will work for the Mastertronic? Looking for replacement of the external hoses.

Looking for these as well. All I’ve seen is the pump hose tube sizes/material.

 

[tmccaff]

Looking for these as well. All I’ve seen is the pump hose tube sizes/material.

I am going to try this of course need to cut it to 2M in length. I will let you know if it works. 20 FEET and cut 3 of them 2M, I will see if these work.

 

[tmccaff]

@kenchilada I was told by Focustronic the hoses will be at BRS shortly and other parts. However, I am going to try the ones above.

 

[kenchilada]

@kenchilada I was told by Focustronic the hoses will be at BRS shortly and other parts. However, I am going to try the ones above.

Yeah the problem with that is they charge 20x markup. Like the intake filters for $8? Ridiculous.

 

[tmccaff]

True. Ok here is the pic of the hose. It's not as flexible it seems as original the ID look the same. The top one in pic is original and second is the hose I bought. I am going to run some tests to see before I say this is a go. Now this is $13.99 and will make all 3 hoses. I am not sure how much they will charge for the original hoses.

 

[tmccaff]

Any word on the needles and syringes? I bought those vials from China waiting to see if they will work. Only $13 for 10 of them so can't go wrong. Actually ugh the original hoses 3.2mm and these 3mm. That probably wont work

 

[zbryant91]

Any word on the needles and syringes? I bought those vials from China waiting to see if they will work. Only $13 for 10 of them so can't go wrong. Actually ugh the original hoses 3.2mm and these 3mm. That probably wont work

this is the stuff I got and it's been fine.

 

[kenchilada]

Actually ugh the original hoses 3.2mm and these 3mm. That probably wont work

I found these on Ali (select the 3.2mm ID). I don't think it mentions what length you are buying though.

https://www.aliexpress.us/item/2255799919402298.html

What do you think?