Compatible with City Mini GT Stroller?

Hi Melanie, Thank you for your enquiry. Yes, by using the Baby Jogger City Series Mini/Elite/Summit Car Seat Adapter, this is designed to fit several popular car seats including most Graco and Evenflo car seat models. To find this adapter online follow the link https://www.babyonthemove.co.nz/on-the-move-/single-buggy/car-seat-adaptors/BabyJoggerCitySeriesMiniEliteCarSeatAdapter. If you follow the link https://www.babyonthemove.co.nz/store-locations/ this will take you to our on-line store finder. Here you can find contact details for your nearest Baby On The Move store where one of our team experts can help find a suitable solution for a product you may be searching for and assist you with any further questions you may have regarding our range of products available. We hope this has helped with your query.