What are the weight and height limits for rear-facing use?
The Extend2Fit supports rear-facing children from 4-50 lb (1.8-22.5 kg) and up to 49 inches (125 cm) or less. Children less than 22 lb (10 kg) MUST use this car seat rear-facing. Children are safer riding rear-facing as long as possible until they reach the maximum rear-facing height or weight rating.
From the official Graco Extend2fit manual, page 1
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