Stem, w/O-Rings, Water Coolant Valve, to fit A-dec® Auto-Pac & Auto Block; Pkg of 3 Package of 3 (A-dec® #22.0776.00) Stem w/ o-ring A-dec® is a registered trademark of A-dec, Inc. DCI has no affiliation with A-dec and A-dec has not authorized DCI replacement parts to be used on or in connection with A-dec® products.