Is this adaptor compatible with the City Mini GT? Thank you

Hi Stacey, Thank you for your enquiry. The Baby Jogger City Series Mini/Elite/Summit car seat adapter is suitable for the Baby Jogger City Mini, City Mini GT, City Elite, Summit X3, Summit XC and is designed to fit several popular car seats including most Graco and Evenflo car seat models. 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 regarding our range of products available. We hope this has helped with your query.