For sale: travel trailers / lakewood, nj description: 2015 Airstream International Serenity 25fb, oyster ultraleather interior, msrp $87,008.00, stock#10270, lowest price guaranteed, we will not be undersold!!! For a full description, floor plans, features, specifications, additional photos and options for this Airstream please visit our award winning colonial Airstream website: features: fresh water tank capacity: 39 black water tank capacity: 39 grey water tank capacity: 37 # ac units: 1 ac specifications: 15k btu w/heat pump payload capacity: 1688 hitch weight capacity: 833 interior color: oyster ultraleather exterior color: silver