Philips Sonicare HX7022/64 E-Series Standard Sonic Toothbrush Heads: Keep up with your oral health routine and effectively remove plaque. The classic brush head's contoured profile fits the shape of your teeth for a thorough clean every time.
These last a while and are great brush heads. My only issue with them is that they are hard to clean and water seeps into the cracks. I have to unscrew the brush head after each use to let it dry out, and I clean it one to twice a week to prevent gunk from building up. For the price, they should really make these leak proof.