Partner Steel's "Jon-ny Partner" is your camp-site's best friend. This comes with a sealing lid for transporting and an RV clean out system. Since it is all aluminum construction, odors will not build up as does in plastic units.
Each tank holds 65 man-days of waste (1person=65 days, 5 persons=13 days).
Complete System includes: Tank (lid & attachments), Seat Unit (includes adapter ring), and Disposal Unit (spray and 3' of dump hose).