• DOTS manufactures Adapter and drilling Spools in all sizes and pressure ratings. Adapter Spools have end connections that differ from one another in nominal size and/or pressure rating. Buyers may specify any combination of end connections as well as overall height or length (OAL). When specified “minimum height (or length)”,

  • DOTS Adapter Spools have minimum overall height (or length) consistent with adequate clearance to accommodate studs, nuts, wrenches, and clamps where applicable.