Uni-Dose replacement parts

Hello,
I have a Uni Dose model U042-281TT injection pump that I purchased from you.
I need a replacement Injection check valve, foot valve, and strainer. Do you carry these items separately?
I have a Uni Dose model U042-281TT injection pump that I purchased from you.
I need a replacement Injection check valve, foot valve, and strainer. Do you carry these items separately?