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Dust Caps for Inlet/Outlet Connections on Liquid Cylinders
These dust caps are made specifically for the inlet and outlet connections on liquid cylinders.  They are shown in red but come in a variety of colors that correspond to the gas service of the fitting.  They come with a tear-off tab to make removal easier.  Caps are shown in red for demonstration purposes only.
CGA 295 Inlet/Outlet Cap

This dust cap is designed for use on Inlet/Outlet fittings on liquid cylinders filled with medical or industrial inert gases such as Argon, Nitrogen, and Helium. 

​Part Numbers

 033-452 Black
033-453 Brown
033-454 Green

CGA 440 Inlet/Outlet Cap

This dust cap is designed for use on Inlet/Outlet fittings on liquid cylinders filled with medical or industrial oxygen.

Part Number:

033-456 Black
033-457 Green
CGA 622 Inlet/Outlet Cap

This dust cap is designed for use on Inlet/Outlet fittings on liquid cylinders filled with medical or industrial carbon dioxide.

Part Number:

033-459 Black
033-461 Green
033-462 Gray
​CGA 624 Inlet/Outlet Cap

This dust cap is designed for use on Inlet/Outlet fittings on liquid cylinders filled with medical or industrial nitrous oxide.

Part Number:

033-459 Black
033-460 Blue
033-461 Green