The excellent PID system is needed for successful execution of the broad experimental program at future Super C-$\tau$ Factory in Novosibirsk. The main requirements for PID system are following: good $\pi/K$-separation in whole operational momentum range and good $\mu/\pi$-separation in momentum range from 0.4 up to 1.2 GeV/c. The RICH detector based on focusing aerogel (FARICH) suits for all these requirements. The method FARICH is described and beam test results are presented. The scheme of the FARICH system for the universal detector of Super C-$\tau$ Factory project is given. Limits for multilayer aerogel production uncertainties are formulated. Most promising position sensitive photodetectors are considered.