SKU: 12448989742

Cthulhu Spire MTL Boro RBA

Sale price$18.75 Regular price$20.83
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Description

Cthulhu Spire MTL Boro RBACthulhu Spire MTL RBA The Spire MTL RBA by Cthulhu has been designed with MTL vaping at the forefront. There aren't many dedicated MTL rebuildables on the market most are just all rounders but Cthulhu used computational fluid dynamics software for airflow optimisation, bringing you quiet and smooth bottom airflow. They've included four different airflow pins ranging from 1. 0 1. 8mm with two chimney options to really customise your draw and throat

Cthulhu Spire MTL RBA

The Spire MTL RBA by Cthulhu has been designed with MTL vaping at the forefront. There aren't many dedicated MTL rebuildables on the market - most are just all-rounders - but Cthulhu used computational fluid dynamics software for airflow optimisation, bringing you quiet and smooth bottom airflow. They've included four different airflow pins ranging from 1.0-1.8mm with two chimney options to really customise your draw and throat hit. The Cthulhu Spire MTL RBA is designed in a BORO configuration with the inclusion of the Cthulhu Boro Tank, so you can pair this with most BORO mods and AIO setups. With 3.5mm large head screws, the single coil deck allows for easy coil installs with that flavour-focused airflow system just beneath. Cthulhu are well known for their high-end rebuildable quality and flavour-focused RBAs, and the Spire MTL RBA is no exception.

Spire MTL RBA Key Features

  • Boro Configuration
  • Rebuildable Atomiser
  • Includes Cthulhu Boro Tank
  • MTL Vaping
  • Quiet & Smooth
  • Bottom Airflow
  • 4 Pins: 1.0 / 1.2 / 1.4 / 1.8mm
  • 3.5mm Large Head Screw
  • Easy Single Coil Installation
  • Flat & Dome Shaped Chimneys
  • Designed to offer Different Throat Hits
  • Made From 316SS

Boro Configuration with Included Tank

The Spire MTL RBA uses boro configuration, which means it fits most boro mods and AIO devices on the market. Cthulhu includes their own boro tank in the box so you can start vaping straight away. If you've already got a boro mod, just drop the Spire in and you're sorted. The standardised boro sizing makes this RBA compatible across different setups without needing adapters or modifications.

MTL-Focused Bottom Airflow Design

Cthulhu used computational fluid dynamics software to design the Spire's airflow system. What that means in practice is quiet, smooth airflow without the whistling you get from some bottom airflow RTAs. The airflow comes up from beneath the coil, hitting your build directly for focused flavour. Because it's designed specifically for MTL rather than being adapted from an RDL system, the draw feels natural and controlled.

Four Airflow Pins and Two Chimney Options

You get four airflow pins in the box: 1.0mm, 1.2mm, 1.4mm, and 1.8mm. Swap them out to adjust how tight or loose your draw is. Smaller pins give you a cigarette-tight MTL inhale. Larger pins open things up slightly for a looser restricted draw. The Spire also includes two chimney options - flat and dome-shaped. The flat chimney gives a sharper throat hit. The dome shape smooths things out. Between the pins and chimneys, you can dial in exactly how you want your vape to feel.

Single Coil Deck with 3.5mm Screws

The deck uses a single coil configuration with large 3.5mm head screws. Installing coils is straightforward - the big screws are easy to grip and tighten without fiddling. Wicking is simple too, with clear channels showing you where the cotton needs to sit. Single coil setups use less power and less e-liquid than dual coil builds, which suits MTL vaping where you're after flavour rather than clouds.

High-End Build Quality from Cthulhu

The Spire MTL RBA is made from 316 stainless steel. Cthulhu have a reputation for solid machining and quality control on their rebuildables. The threading is smooth, the parts fit together cleanly, and everything feels well-made rather than loose or cheap. If you've used Cthulhu RTAs before, you know what to expect - this RBA keeps up that standard.

Why Choose the Spire MTL RBA?

The Spire MTL RBA is built specifically for MTL vaping rather than trying to do everything. You get proper MTL airflow that's been engineered with software rather than guessed at. Four airflow pins and two chimneys let you fine-tune your draw and throat hit. The boro configuration means it fits most AIO setups, and Cthulhu includes their own tank so you're not hunting for compatible parts. Single coil building is straightforward with those large 3.5mm screws. If you want a dedicated MTL rebuildable with proper engineering behind it, the Spire delivers.

What's in the Box?

  • 1 x Cthulhu Spire MTL RBA
  • 1 x Cthulhu Boro Tank
  • 4 x Airflow Pins (1.0mm, 1.2mm, 1.4mm, 1.8mm)
  • 1 x Flat Chimney
  • 1 x Dome Chimney
  • 1 x Spare Parts
  • 1 x User Manual
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 12448989742

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4.4 ★★★★★
Based on 16 reviews
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K
Verified Purchase
Ken
Battle Creek, US
★★★★★ 5
Great frother/stirrer especially for the price.
Color: Black, Size: Rechargeable
Best one available. Have used cheap ones from the store that work pretty good, but batteries are a pain. This is rechargeable and it has a push button that allows you to start it right away without having to turn it on to start it kind of like a power drill. If you start to press it it goes slow the harder you press the faster it goes. The different attachments are great. We use it for both coffee frothing as well as mixing up electrolyte drinks with water with the included mixing attachment. Crazy powerful and easy to use.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 9, 2026
T
Verified Purchase
Techie
Lexington, US
★★★★★ 5
Strong motor. Works great
Color: Black, Size: Rechargeable
I really like this frother. The fact that it’s variable speed, rechargeable, and can spin at a high rate are all great features. I use it to blend collagen powder and cream into my coffee every morning. Also sometimes use it to Blend drinks. Strong motor. Like that the whisks are removable for cleaning and that it comes with different ones.
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Reviewed in the United States on April 9, 2026
J
Verified Purchase
John Wagner
Bozeman, US
★★★★★ 4
Works well, long use on single charge, high torque - be careful when starting
Color: Black, Size: Rechargeable
Not the most inexpensive powered whisker bur I've used other Typhor products and found them reliable for the task designed. I fell they don't cheap out on the rechargeable battery so I don't fell they will catch fire, as we are hearing about from other cheaper rechargeable items. I liked 2 things about this model the speed control is by a pressure single switch which I can control, not just pick speed 1,2,3. The swappable tips allow for different uses. I don't drink coffee but use the item to whisk eggs for an omelets and it has the torque to mix them without effort. In Fact need to only use half power else it will splatter out of my mixing vessel.
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Reviewed in the United States on June 7, 2026
M
Verified Purchase
Mike from San Diego
Natrona Heights, US
★★★★★ 5
I love it!
Color: Black, Size: Rechargeable
This thing works great! It holds a charge for a long time. I love that it has different attachments. I use it mainly for mixing powder into my drinks. It is very powerful. The speed is adjustable too. It feels good to hold too. It lights up when you squeeze the trigger and when it starts losing charge, the light bar gets shorter. I highly recommend it.
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Reviewed in the United States on June 3, 2026
K
Verified Purchase
KindleDiva
Fort Morgan, US
★★★★★ 5
Perfect all-around frother, stand keeps it nice and neat on the counter within easy reach.
Color: Black, Size: Rechargeable
Rechargeable, lightweight, variable speeds and optional whisks all make this the perfect item for your kitchen. You can quickly froth milk for your coffees, whip a small batch of whip cream, and even make mug cakes with the hook attachment. The price is very compatible with the competitors, but the ease of use makes this a top choice. The variable speeds makes it much better to control than the push button ones. When you let go of the pressure switch it turns off, no need for a dedicated on-off switch. Having the pressure switch on the top makes it extremely easy to use! It fits very comfortably in the hand and with the metal stand, looks quite nice on the counter, ready to use at any time. I highly recommend this InstaWhisk!
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Reviewed in the United States on May 28, 2026

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