Established subprime lenders have a new place to sell some of their production: a conduit established by Washington Mutual. The conduit, which began bidding on loan pools last week, is targeting portfolios of 2-year adjustable-rate mortgages totaling $50 million to $100 million from established subprime lenders. WaMu also plans to buy a small number of piggyback seconds, interest-only loans, and 40-year mortgages.