Prime-Line U 9265 Vinyl Circular Wall Protector with Self-Adhesive Backing, 7-In. Diameter, White (Single Pack) 1 Count (Pack of 1) workwarehouse the OD of the barb

the OD of the barb is 7/16"(about 11mm)

Guarantee - Full refund warranty if you are not satisfied with any product reason in 30 days

Expandable square-wire spring instantly adjusts to the shape and size of the splice

as the Ph Meter Has an Auto Temprature Compensation Feature That Adjusts to Water Temperatures and Water Quality

Prime-Line U 9265 Vinyl Circular Wall Protector with Self-Adhesive Backing, 7-In. Diameter, White (Single Pack) 1 Count (Pack of 1) workwarehouse the OD of the barbPrime Line U 9265 Vinyl Circular Wall Protector with Self Adhesive Backing, 7 In. Diameter, White (Single Pack) The Prime Line U 9265 Single Pack Circular Wall Protectors from Door Knobs protect interior walls from impact damage by shielding the point of contact on the wall from door knobs. The wall protector shields can also be used to conceal small holes in walls and prevent further damage caused by doorknobs. The wall protectors are constructed