Comparison : Item # 341-597-54, 5/16 Inch Stem Outside Diameter High-Performance Polymer Push-To-Connect Stem to Tube Reducing Straight Adapter
Item # 341-597-64, 3/8 Inch Stem Outside Diameter High-Performance Polymer Push-To-Connect Stem to Tube Reducing Straight Adapter
Item # 341-597-65, 3/8 Inch Stem Outside Diameter High-Performance Polymer Push-To-Connect Stem to Tube Reducing Straight Adapter
Item # 341-597-86, 1/2 Inch Stem Outside Diameter High-Performance Polymer Push-To-Connect Stem to Tube Reducing Straight Adapter