One of the hobbyists asks me in the pm, what is a good alternative of expensive swagelok or parker hannifin system mounted check valve, I do have the answer, but figure to answer here is better, more people will know.
Swagelok and Parker Hannifin check valves are really good, but price tag are huge and most require tube end adapters.
here is another good Stainless steel industrial/lab grade check valve, it is the SMC 210 series, piston design, 1/8 npt ports, ready to connect, and, much cheaper...
SMC 210 series check valve.
321336648884
all parts are saltwater rated 316/316L stainless steel in the picture.
Swagelok and Parker Hannifin check valves are really good, but price tag are huge and most require tube end adapters.
here is another good Stainless steel industrial/lab grade check valve, it is the SMC 210 series, piston design, 1/8 npt ports, ready to connect, and, much cheaper...
SMC 210 series check valve.
321336648884
all parts are saltwater rated 316/316L stainless steel in the picture.