In need of a new Fios hardware setup

Hey guys I am currently using a MI424WR-GEN3I router from Frontier and paying for 50 down 10 up. I am maxing out at maybe 20 on speed tests and at the lowest 1.2 . Is there a moden and router I could use that would work on fios. I tried calling them and asking for a list of routers that would work and everyone I talked to said we have never been asked that before we don't know. Do I need a DOCSIS 3.0 modem or a MOCA modem all I am using is internet.

I am looking at this ARRIS SurfBoard SB6183 DOCSIS 3.0 modem and wondering if it will work.
http://www.newegg.com/Product/Product.aspx?Item=N82E16825390006&cm_re=SURFboard_DOCSIS_3.0-_-25-390-006-_-Product

Also this router
http://www.newegg.com/Product/Product.aspx?Item=N82E16833320062&cm_re=dual_band_router-_-33-320-062-_-Product