3/8" MALE X FLARE SIGHT GLASS

Features:

• Moisture indicator for refrigerants 
  R22, R404A, R407C, R410A, R502 or R507
  
• Shows refrigerant status which is useful for 
  correct diagnostics of the system
  
• Large full view sight glass 
  
• Leak-proof sight glass 
  
• Hermetic design