Phil & Teds LATCH BASE Instructions Manual page 34

Instructions
When using the infant car seat with the LATCH base,
if the foot is in the raised position and the ball still falls in
the red zone you may need to place a tightly rolled towel
under the foot end of the LATCH base in order to get the
infant car seat to become level.
NEVER place a rolled towel under the child's head end
of the LATCH base. If towel is used , it must only be used
in position shown.
4–20lbs (1.8 – 9.1kg)
20 – 35lbs (9.1–15.9kg)
NOT LEVEL