Meritline offers the Trident Kraken Case for Apple iPhone 4 in Grey, model no. KKN-IPH4-GY, for $13.99. Coupon code "MLC116XN" drops it to $10.99. With free shipping, that's $6 under our June mention and the lowest total price we could find now by $6. This polycarbonate and silicone case features a built-in screen protector, belt clip, audio jack extender, and more. Coupon expires after 100 uses.