The J.D. Gould B3-21 Valve is a valve model from J.D. Gould, identified in this listing as B3-21. The product description text reads J.D. GOULD B3-21 VALVE 3 8" B321, linking the B3-21 designation to a size or catalog code shown for this item. This exact model reference from the J.D. Gould line helps buyers confirm they are selecting the intended B3-21 valve for replacement or repair projects.
