Related Clues:

• Pipe angle
• Pipe with a quarter bend
• Architect's extension
• Plumber's bend
• The one of fourth-and-one
• Right-angle bend
• Three feet
•     Prison exercise area
• Bend shape
• Right- or lefthand turn
• Right-angled pipe
• Meter's kin
• Eero's wing
• Alphabetic character
• See 73-Down