Trigger valve for TVA11 Nailer Replacement for obsolete part TVA11. Stuck trigger, gun not firing, or air an leak are common signs of a bad trigger High Quality After-Market TVA11 trigger valve. Fits tools: N52FN, N62FN, N79RH, N79WW, N80SB, N88RH, N88WW, N90PT, N90RHN High Quaility Replacement TVA11 Siamese Trigger Valve. Package includes a TVA11 Trigger Valve Replacement as images show. A brand-new, unused, unopened, undamaged item in its original packaging.