. >> reporter: they're so popular sales manager garrett connelly is having trouble getting new replacementslot. it's an issue facing dealers nationwide including in eastern texas. >> sales are off the charts, but the supply is down. i have one manufacturer who won't fulfill any of our orders unless we can show them that it's a sold unit. >> reporter: the pandemic forced factories that make rvs to shutdown temporarily whchlt they came back online, manufacturers faced supply chain issues that continue to this day. shortages from lumber to furniture and appliances are keeping rv makers from getting projects finished. >> everything done but maybe a board over a window because they can't get that window in or an ac unit not there. >> reporter: the problems are not expected to ease any time soon. what is the typical wait period? >> it really depends on the particular product. generally speaking now it's at least a three-month wait period. >> reporter: some rvs are sold out up to a year. many customers buying now may have to wait until next spring or longer. deeana demetrius, cbs news, loss. >>> a