Nuna also sells these two together as the mixx™ next + pipa™ rx travel system.
This answer is for the Nuna MIXX next.
Key specs
Adapter
In the box
Whole set, list prices
$1450
Weight with carrier
35.9 lb
Seat rated to
30 lb, 30 in
On planes (FAA)
Yes
Stroller folded
L 27.5 x W 23.6 x H 19 in
Good to know before you click it on
Only with PIPA series seats on a MIXX series stroller; adapter mounts either direction, carrier attaches to it one way only.
About this pair
The Nuna Pipa RX goes on the Nuna MIXX next with the Nuna MIXX car seat ring (in the box), which ships with the stroller. With the carrier on, you are pushing about 35.9 lb (28.3 lb stroller, 7.6 lb carrier). The seat itself is rated up to 30 lb and up to 30 in, per Nuna.
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8 other infant seats fit the Nuna MIXX next.
Summary from the makers' published data.
How to set up the Nuna Pipa RX on the Nuna MIXX next
What you need
The Nuna MIXX next
The Nuna Pipa RX carrier (its car base stays in the car)
The Nuna MIXX car seat ring (in the box) — it comes in the box
Step by step
1Slide the two halves of the ring adapter together until they click, then pull on both ends to check the join.
2Set the ring onto the stroller's seat mounts until it clicks; it can face forward or rearward.
3Place the PIPA car seat on the ring and press down until it clicks; it only fits one way.
4Pull up on the car seat to check it is locked to the ring and the ring is locked to the stroller.
Nuna says it needs an adapter (MIXX car seat ring (in the box)).
“And don't forget that all of our PIPA™ infant car seats (PIPA™, PIPA™ lite, PIPA™ lite lx, PIPA™ lite r, PIPA™ rx, PIPA™ lite rx) pair with both the MIXX™ next and TAVO™ next.”
