Package Include: 2pcs each size, total 18pcs.

Material: Lead Free Brass C69300.

Type: Male x Hose Barb.

Tubing ID: 1/4", 3/8", 1/2", 5/16". 

Thread: 3/8" Male NPT.

Tubing ID: 1/4", 3/8", 1/2", 5/16", 3/16". Thread: 1/2" Male NPT.

This multi-size fitting kit is made of durable material, these connectors provide reliable corrosion resistance and secure, leak-proof connections. Compatible with standard threaded ports and tubing systems, this kit is suitable for plumbing, air lines, fuel systems, and industrial maintenance tasks. Ideal for both professional and DIY use.Features- Package Include: 2pcs each size, total 18pcs.- Material: lead free brass C69300.- Type: Male x Hose Barb.- Tubing ID: 1/4", 3/8", 1/2", 5/16". Thread: 3/8" Male NPT.- Tubing ID: 1/4", 3/8", 1/2", 5/16", 3/16". Thread: 1/2" Male NPT.