Philips HQ4/21, 2 head(s), HQ486, HQ130, HQ132, HQ136, HQ30, HQ33, HQ40, HQ402, HQ404, HQ406, HQ41, HQ42, HQ422, HQ441,... Philips HQ4/21. Number of shaver heads: 2 head(s), Compatibility: HQ486, HQ130, HQ132, HQ136, HQ30, HQ33, HQ40, HQ402, HQ404, HQ406, HQ41, HQ42, HQ422, HQ441,...