R744 Refrigeration Industry Uses Encole CO2 Sight Glasses

Because R744 Refrigerations Systems operate at much higher pressures there is a need to use a new kind of sight glass. Traditional fused sight glasses typically operate at 1,400 psi, while Encole’s sight glasses can safely run at 5000 psi.

Source: http://www.1888pressrelease.com/r744-refrigeration-industry-uses-encole-co2-sight-glasses-pr-547288.html