Amazon.com: Sh50/52 Shaver Replacement Heads for Philips Norelco Series 5000 Shaver, New Upgrade Shaver Replacement Blades Compatible with AquaTouch (S5xxx), PowerTouch (PT8xx, PT7xx) and AquaTouch (AT8xx, AT7xx) : Beauty & Personal Care
Amazon.com: SH50/52 Replacement Heads for Philips Norelco Shavers Series 5000, PowerTouch, AquaTouch, OEM SH50 MultiPrecision Blades Upgrade Head (3 Count)
SH50/52 Replacement Heads for Philips Norelco Series 5000 Electric Shaver, Replacement Blades Head Fit for Phillips Series 5000 (S5xxx), AquaTouch (S5xxx), PowerTouch (PT8xx, PT7xx), 3-Pack with Brush 3 Pack