From the Foster Coach Sales Facebook page:

Brand new custom Horton conversion on an International 4300 chassis

Naperville FD Ambulance M7

Foster Coach Sales photo

Naperville FD Ambulance M7

Foster Coach Sales photo

Naperville FD Ambulance M7

Foster Coach Sales photo

ambulance interior

Foster Coach Sales photo

ambulance interior

Foster Coach Sales photo

chevron striping on rear of ambulance

Foster Coach Sales photo