Britax Marathon G4 Convertible Car Seat, brand new in box

I am selling a brand new Britax marathon G4 convertible car seat, still in the box, the latest model. Ask for $190. original price $ 203+ tax=$221

see details on amazon :

http://www.amazon.com/Britax-Marathon-Convertible-Seat-Kiwi/dp/B00G34TIHS

Item is in Fremont, could be delivered on campus. Please contact me before Sept 20, or I 'll return it to store.