AIGNEP USA Metallic Fittings are all metal fittings, push to connect, swift fit threads, good for metric and imperial (NPT, BSPP, BSPT, G).
Straight (89000 / 57000 series), Elbow (89110 / 57110 series), Branch Tee (89210 / 57210 series), Union (89040 / 57040), Bulkhead Union (89050 / 57050), Union Tee (89230 / 57230), male, female and many other options.