There are three principal differences between the two.
1 The NATO carousel is completely made fro stainless steel. The portable carousel has stainless steel arms, pots and lids with a mild steel powder coated chassis.
2 The NATO carousel if full height adjustable. While the portable has two fixed height positions suitable for medium and large Dogs.
3 The NATO carousel has a lid retention system that stops the Dog removing the scent lid during interrogation. The Portable carousel has a push-fit lid only.