Grefac Sight Glass 
 Clearer indication for all kind refrigerants
 Provide accurate determination of the moisture content of the system refrigeration.
 Sensitive for moisture availability
 Wide angle view 
 Corrosion resistant body
 SAE (Flare) both side joints.
 Available model as below:-
 GMI-03 3/8" Sight Glass
 GMI-04 1/2" Sight Glass
 GMI-05 5/8" Sight Glass
Malaysia