1.Barb hose fitting has a male National Pipe Thread (G) thread on one end and a barbed insert on the other for connection to polyethylene (PE) pipe in a straight run. 

2.The adapter's barbed fitting creates a tight seal on flexible PE pipe when used with a hose clamp (sold separately).

3.barb tube fitting made of gray polyvinyl chloride (PVC) plastic ,have Alkali resistance, high temperature resistance, corrosion resistance, strong anti-aging, high strength, no break.

4.An O-ring is delivered to the end of each joint thread, eliminating the need for a sealant or raw tape, and screwing it up with the corresponding female thread.

5.-30 degree to 100 degree F temperature range.

6.Barb size is hose inner diameter.

Specification:

Product Name: Barb Hose Adaptor

Weight: 27g

Color: Gray

Material: PVC

Size: 8mm or 5/16" Barb x 3/8" G Male

Male Thread Size: 16.2mm = 3/8" G

Barb Length: 21mm / 0.83-inch