Low intensity shockwaves (1/10 the ones used in Lithotripsy) are delivered to the penile tissue. Shockwaves are created by a special generator and are focused using a specially designed shockwave applicator apparatus. The shockwaves are delivered through the applicator covering the corpora cavernosa of the penis. In previous studies the investigators used a medium focused probe and in this study the investigators are evaluating results of this therapy using a wider focus probe in the aim of improving results of treatment.

Inclusion Criteria:

• ED of more than 6 months
• At least 50% unsuccessful to attempt sexual intercourse for 4 times at 4 different days
• Positive response to PDE-5 inhibitors
• IIEF-5 domain score of 12-20 denoting mild to severe ED
• Non-Neurological pathology
• Stable heterosexual relationship for more than 3 months

Exclusion Criteria:

• NPT - normal/flat
• Prior prostatectomy surgery
• Any cause of ED other than vascular related
• Any unstable medical, psychiatric, spinal cord injury, penile anatomical abnormalities
• Clinically significant chronic hematological disease
• Cardiovascular conditions that prevent sexual activity
• History of heart attack, stroke or life-threatening arrhythmia within the prior 6 months.
• Cancer within the past 5 years.
• Anti-androgens, oral or injectable androgens
• Use of any treatment for ED within 7 days of screening including oral medications, vacuum devices, constrictive devices, injections or urethral suppositories