PRO GRADE 1.25" PVC Male Hose Barb (1.5" Barb Insert X Male NPT) with Stainless Steel Hose Clamp SCHEDULE 80 PRO GRADE. OUTSIDE DIAMETER (OD) is 1.2" Stainless Steel Key Type hose clamp for quick adjustment without the need for screwdriver. 7/16" rust free band width. Diameter from 21mm to 44mm ( 7/8" to 1 3/4") High rigid PVC barbed inserts provide excellent grip with PVC material. High pressure rated PVC fiting. Chemical and corrosion resistant Special Insert Fittings design uses built-in lock ring for easy connection without clamps to Polyethylene (PE) Plastic Pipe used with standard Insert Fittings PRO TIP: If required, preheat the tubing before inserting the tubing into the barb for easier insert Van Enterprises Insert Fittings are manufactured from high quality PVC materials to meet or exceed the applicable requirements and for Plastic Insert Fittings using Polyethylene (PE) Plastic Pipe. Available sizes: 1", 1.25", 1.5" and 2"