STEC-Horiba SEC-4600RAugust 24, 2012|Mass Flow Controllers, STEC-Horiba Home ยป Mass Flow Controllers ยป STEC-Horiba ยป STEC-Horiba SEC-4600R Coastal Instruments services most of STEC-Horiba mass flow controller models. The STEC-Horiba SEC-4600R is one of the models we service.