Cap nut Castel 7020/40 (1/2")
Castel nut 7030/4M10 (10 mm x 1/2")
Castel nut 7030/4M12 (12 mm x 1/2")
Castel nut SN-8 (12 mm x 1/2")
SAE-Flare union UN-8 (1/2")
SAE-Flare tee UT-8