This replacement head can be fit for many philips shaver models: RQ10 Series, RQ12 Series, SH70, S7000 Series, SH90 S9000 Series. Fit for SensoTouch 3D 1200 Series Razor models: S9911/ S9731/ S9711/ S9511/ S9111/ S9031/ RQ1250/ RQ1250CC/ RQ1260/ RQ1260CC RQ1280/ RQ1280CC/ RQ1290 / RQ1290CC/ RQ1251/ RQ1251CC/ RQ1252/ RQ1252CC/ RQ1265. for Arcitec 1000 Series Models: 1050X, 1059X, 1060X, 1090X, 1050CC, RQ1075, RQ1076, RQ1080, RQ1085 RQ1095, RQ1090, RQ1070, RQ1060, RQ1051, RQ1050, RQ1050CC. Can also be used on model S738. Fits models: S9011, S9021, S9031, S9041, S9111, S9121, S9151, S9161, S9171, S9311, S9321 S9371, S9511, S9521, S9522, S9531, S9711, S9721, S9731, S9911, S9988(may not work in JetClean systems). Fits models: S7310 S7370 S7530 S7720 S5075 S5095 S5081 S5082 S5000 S5230 S5271 S5078 S5210 S5070 S5079 S50911. This is a aftermark replacement head for select models, it is NOT made by for Philips Norelco.