Sears offers this Craftsman WeedWacker 25cc Gas Trimmer, model no. 71137, for $73.38 with free shipping. That's $22 off list and the lowest total price we could find, although we saw it for $3 less last summer. It features a 17" cutting width, 25cc 2-cycle engine, and bump head.
Of note, Shop Your Way Rewards members will earn a Sears credit with this purchase and may be eligible for additional credits and discounts.