SS-43GM4-S4
SWAGELOK Ball Valve 1/4" FNPT x 1/4" T, SS-43GM4-S4-1466, SHIPSAMEDAY
A nice touch with this Heat Exchanger is the thermal fuse for added safety.
LOT OF 2 Swagelok ball valve 1/4" npt x 1/4" tube, SS-43M4-S4, SHIPSAMEDAY #ZL15
What I appreciate is the silver paint is non-toxic and safe for food-related tasks.