3 Philips Sonicare ProResults Brush Heads for $17 + free shipping
goldenwords fans.com offers the Philips Sonicare ProResults Brush Head 3-Pack, help no. HX6013/90, for $19.55. Add them to your cart via Subscribe & Save and it drops to $16.62 and bags free shipping. That’s $5.54/brush and the minimal amount toll we could encounter for this abstraction by $13, though we saw them for $4 inferior (via mail-in rebate) in Feb (since expired).
Of note, be trusty to equilibrate Subscribe & Save after your visit ships or added you’ll be billed for ensuant shipments.