Comparison : Item # QA-23-1, QA-23 Adapter, 90° Bend
Item # QA-23-2, QA-23 Adapter, 90° Bend
Item # QA-23-3, QA-23 Adapter, 90° Bend
Item # QA-23-4, QA-23 Adapter, 90° Bend
Item # QA-23-5, QA-23 Adapter, 90° Bend