This shaver has an integrated shaving unit. The shaving unit required for this shaver is the RQ12 or RQ12+ Philips shaving unit.
Note: If you already own an RQ12+ shaving unit and need to replace shaving heads, you can simply buy SH90 shaving heads. These shaving heads fit in the RQ12+ shaving unit.
Note: SH90 shaving heads do not fit in the RQ12 shaving unit.
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