Fry's offers the APC Home Office SurgeArrest 8-Outlet Surge Protector for $14.99 with free shipping. (Amazon charges the same.) That's the lowest price we could find by $6, outside of the mention below. It features a phone splitter and protection of up to 2,770 joules. Deal ends May 27.
A close price: Home Depot charges $15.74 via in-store pickup.