Chemical-Resistant Quick-Disconnect Tube Coupling  assembly was made by Colder Product Company 


Through-Wall Socket with Valve, 5/16 Coupling, for 1/8" Tube ID Flow size


Coupling Type Socket
Connection  Barbed
Coupling Size  (Socket ID)1/8 (5/16")
For Tube ID  1/8" and 1/4" ID
Material Polypropylene
Maximum  Pressure 120 psi @ 70° F
Temperature  Range32° to 160° F
Vacuum Rating 24" Hg @ 70° F
Compatible Tubing  Soft and Firm