The Montesano City Council is being asked to green light the purchase of a new ambulance. The ambulance will be a “medium duty” model and will replace the city’s 2006 ambulance. Fire Chief Corey Rux says the 2006 ambulance is at the end of its service life. While medium duty models are more expensive initially, Rux said he believes the medium duty ambulances outlast light duty models by five years.“We have been looking at ambulance specs for the past several months and doing our due diligence and looking at all different types,” Rux said. “We ultimately settled on a box configuration that was similar to the ones we have so all of our equipment is in relatively the same place.