The four-slot flagship
The T21AH is what the T21A becomes when a customer stops buying one accessory and starts building a kit. Four side slots — two on the roof extrusion, two on the floor — let an awning, an annex, a water tank, a light bar and traction boards all mount to the shell at once, without drilling and without one item blocking another.
That is the whole point of the slot system: the accessories bolt to the extrusion, not to the skin. A four-slot shell therefore stays structurally identical whether the customer mounts one item or five.
22 cm body, and what it changes inside
The body is 22 cm deep against 15 cm on the base model, and the difference goes straight into interior volume. There is 167 cm of headroom at the opening, which is enough to sit up, lean forward and change clothes without your shoulders touching the fabric — the single most common complaint about slimmer hard shells.
The 7.5 cm mattress is standard rather than an upgrade. On top of that, the lid still carries roof rails, so a board or a solar panel can ride above a closed tent.
Round corner finish
This model uses the round corner profile. It is a partly cosmetic choice, but it also removes the sharp edge a customer’s hand meets when they reach over the shell to close the latches from the ladder.
Manual gas strut or electric with remote
Both are available on the same shell and the same mounting footprint. Specify at order stage; a distributor does not need two bracket sets.
Sizing
The T21AH-140 sleeps one to two people and weighs 67.5 kg, closing to 140×216×22 cm with 167 cm of open headroom. Larger shells are available on request for markets that sell on interior space.
