Heartland We have found 1 items matching your search query. Sort By: TitleDatePopularityFeaturedNearestPrice List Grid Map 2016 Heartlland Mallard M231 Posted 13 days 10 hours 34 minutes ago. RV Trailers-5th Wheel 21 2016 Heartlland Mallard M231. Length 29ft, 5048lbs 1 slideout. 1 front queen bed, rear corner bath, u shaped dinette, microwave, LP stove and oven, double door fidge, roof Ac, electric stabilizer jack $20,000 United States of America 1 Page 1 of 1