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NTSU RBA CRTX Caps - Ghost Bus Club

Original price £34.00 - Original price £44.00
Original price
£34.00 - £44.00
Current price £44.00

Cortex®️ the official NTSU rba slam cap.

Following the request we placed our focus on this important add-on for our rba, we made two version, one in brushed 316L and the other in our signature Midnight black matte DLC.


The slam cap presents the same cotton feeding holes but a way different chimey/cap reduced in highness but keeping the same volume, making this we reached 2.6ml more than before putting the total capacity to 6.8ml in a standard boro tank.


Flavor results thicker and warmer, thing that for example enhances the creamy notes and the fruity ones.

A new experience for MTL, now adapt to net dark to.baccos & aromatised ones. The chamber volume makes its difference of course.


Engraved "N" on both sides, NTSU initial, made of ss316L medical grade.


  • Slam cap for use with your NTSU RBA
  • Cap and chimney only, no deck
  • 316L ss construction 

Customer Reviews

Based on 6 reviews
Victor L.

Ordered from France, fast delivery and very good package protection 👌
This NTSU CRTX cap changes everything, flavors are more intense and sweet, a must have !

NTSU Slam Cap

Makes a big difference to the standard NTSU. Gives excellent flavour.

Love it!

NTSU RBA is great. Very good taste from the Slam cup.
Superb shopping experience, can only recommend!