A big thanks out to @Lynda_Marie who turned me onto Vaperz Cloud, their 25mm Osiris Mini RTA, and the Extension Kit. No funding, no sponsoring, and no #TeamFreeShit here people, so you’ll get the Good, the Bad, and the Ugly. Well, you would have gotten that anyways, but you knew that already. 
Let’s get it on !!!
Osiris Mini 25mm RTA Features:
• Diameter: 25mm
• Capacity:
• Fill System: Top Fill
• Build Deck: Postless Deck
• Coil Configuration: Dual Coil
• Coil Fastening: Side Secured
• Airflow: Bottom Dual Slotted
• Tank Material: Stainless Steel
• Drip Tip: Widebore 810 Drip Tip
• Connection: Threaded 510
• Contact Pin: Gold-Plated
• Full Flow Juice Control
What’s Included:
• (1) Osiris Mini 25mm RTA
• (1) 2.5mm Straight Glass
• (1) 3.5mm Bubble Glass
• Extra O-rings, and Screws
• Manual
I was able to pick up both the Osiris 25mm Mini RTA, and Extension Kit both from …
https://vaperzcloud.com/product-category/vaperz-cloud/vaperz-cloud-rta/
Great boxing for both the Mini RTA and Extension Kit.
The Osiris was packaged snugly in it’s box.
User’s Manual.
With some not entirely detailed instructions.
O-rings, and spare grubs.
The Osiris Mini with pre-installed 2.5ml straight glass, and 3.5ml bubble glass.
The Osiris Mini broken down for cleaning.
Starting out with the very nicely knurled top cap, and 810 tip.
Quarter turn release on the top cap, and somewhat generous dual fill ports.
A closer look at the top cap keying, and double o-rings.
The bottom of the top tank plate, dual o-ringed.
The chimney section, single o-ringed.
Inside of the domed chimney section with 4 juice flow ports.
Build deck with screws and 9 air flow ports (per side) visible.
Dual airflow ports, and the deck locking tab (more on this later).
Closeup of the screws, and airflow ports.
Topside with the coil leg screws retracted.
Now, a little more detail on the deck locking tab. O = Open, for deck/tank separation.
With the deck lock tab retracted.
F = Filling.
With the deck lock tab engaged, preventing deck/tank separation.
For my tests, I used some Vandy Vape Ni80 triple core 26/36 fused claptions.
Double checked that the 5 wraps would fit.
Although not mentioned in the manual, 6mm seemed like the right height.
Trimmed, and loose fit before hitting them with the rod.
A good side shot to show the height at 6mm.
The coils paired, tightened, and straightened.
Side view of the coils.
Pulsed, stroked, pinched, and all hot spots eliminated.
With the 5 wrap coils I chose, I did have to wrap the tails back just a bit to land in the wells. I trimmed the tail even with the bottom of the wells, and thinned them so they were snug, but not packed.
Money Shot.
Sauced, and ready to assemble.
While big enough to fill with my Cosmo tips it did take a little tipping, and effort. Needle tipped bottles would be easier to fill with.
Air bubbles as the wicks fully saturated.
Ready for testing.
I did not test either the included bubble glass, or the one included in the extension kit, but I did run the larger straight glass from the extension kit. The kit contained a straight and bubble glass, 5 colored extension adapters, and replacement o-rings.
Comparison of the stock vs. Extension straight glass.
The Osiris just looks better running the larger glass.
And yes, after my initial tests, I DID do a direct A/B comparison to my SteamCrave Supreme.
Testing Usage:
There was a slight learning curve with this one, and although it was great Vaperz Cloud included a user’s manual, it really only covered the basics, so I had to learn as I went, to some degree. I don’t think I even saw the Deck Lock mentioned in the manual, but once I figured out the O, and F, I was off to the races, and it DID actually work. I did get some minor weeping in between the top of the deck mating surface, and the bottom lip of the chimney, but it was minor at best, and depending on how the deck/tank were seated, sometimes it completely vanished, BUT, something to be aware of. Through hole screws are not unique to this deck, BUT, if you accidentally backed them out too much (I did it on purpose), they were HELLA fun trying to get back in.
I liked that VC thought ahead, and made it more user friendly by the rotation of the deck/tank, and 1/4 turn cap for filling. The only way to remove the top cap for filling it rotating counter clockwise, which by design, first shut off the juice flow ports, then released the top cap, and vice versa, pretty nice. The deck was small(er), but it’s a 25mm so that was to be expected, and it was easy enough to build on, even with my 5 wrap coils. Because of where the wick tails landed, and the width of my coils, instead of dropping the tails straight down into the wells, I had to bring them back slightly to land, but, this will vary depending on how much room your coils take/took up. The airflow was slightly restricted, even open to full bore, but I’m pretty sure it ADDED to the saturation of flavor I was getting out of it. Flavor WAS very good on this one.
Pros:
- Great looks with minimal branding
- Nice juice flow shut off and 1/4 turn top cap removal
- Good airflow
- Great saturated flavor
- Fairly roomy deck, even for a 25mm
- Straight glass, and bubble glass included
- Extension Kit available (extra cost)
Cons:
- Screws very small, and if backed out too far, very hard to get back in (through hole design)
- Airflow ring hard(er) to adjust once tank secured on mod
- Some minor weeping in between chimney lip and deck
- Fill ports adequate, but harder to fill with larger Cosmo bottles
- User’s manual only had general info
- No coils, wicks included
Conclusion:
Even WITH all of the Cons with this one, and the learning-ish curve, this one impressed me. The flavor saturation, and reproduction was VERY good. The small screws, and (learning curve) wicking not withstanding, I was even more impressed when doing an A/B comparison to my SteamCrave Supreme. The Osiris was pretty close in comparison, and flavor-wise, I’d rate it as high as 8.95/10 as in comparison to the SC, which was pretty impressive. The airflow ring WAS indeed rather hard to adjust while the tank was seated on a mod, but for me, less of an issue, as I just set it for wide open, and never changed it, so YOUR mileage may vary, especially if you’re an airflow tweaker.
Fit and finish were top rate, with no issues, and all of the threaded parts went smoothly together. The deck lock feature worked surprisingly well, and did INDEED prevent you from accidentally separating the tank from the deck, but I couldn’t be sure if IT, was responsible for the minor weeping. The airflow was only slightly restricted, but as mentioned, I think that added to the saturation of the flavors, and might actually be a PRO. It would have been nice(r) if they had included coils, shoelace wicks, or even a little more info in the manual, but, hehe, that didn’t slow me down much. All in, even with the cons, this one was worth it, and I’m thinking about picking up a 2nd one.
After running the larger extension kit straight glass, I determined there was NO negative impact on flavor, which can sometimes happen when extending the chimney. I could only find mm specs on the extension tanks, so using a crude syringe measuring, the extension straight glass took about 4.5ml of juice, and I’m assuming the extension bubble glass will be 5.5ml. Because I RTA / RDTA for my daily driver, the LESS I have to fill up the better, and I’m glad that @Lynda_Marie mentioned the extension kit, as it cut my fill ups in half, and just plain looked better !!!
https://vaperzcloud.com/product-category/vaperz-cloud/vaperz-cloud-rta/
Bonus:
As always, for any of you, that have actually made it ALL the way down here, I salute you, and thanks for giving me some of your time, and reading this review. As always, some bonus shots for the faithful.
