dump trailer

This trailer is FS on Facebook. Owner says its factory build but can't find a name. Anyone know the manufacturer or brand? ---------------------------------------------------------------------------------------------- Dump trailer in excellent, working condition! - 8 feet long (98 inches)- 4...

I came across the Multilander by Woodland Mills(video below) but it appears they don't make/sell it anymore. Too bad because it looks really useful. I found this brand(MUTS - Multi-Use Trailer System for your ATV, Quad and 4 Wheeler) but it doesn't look as robust. Anyone know other brands out...