Found under the following brands:
A1 Coupling & Hose, Popular Brands, ProForce, Coleman Powermate Sanborn, Craftsman, Industrial Air, Kobalt, Morgan, Porter Cable, Task Force
OEM check valve (ball & spring included) for 3/8" size tube. Replace if unit struggles to re-start or air leaks constantly around pressure switch.
This is obsolete, but you can use our CTRD3812-PLUG Check Valve as a replacement (click the part# to order).