... . 1/4" - 4" Design Features: 1. Nozzle Materials: Brass, 316LSS, Teflon/PTFE, PVC, PP, Ceramics and SiC/SISIC 2. Nozzle Structure: one ... Nozzle, Brass Spiral Nozzle, PP Spiral Nozzle, PVC Spiral Nozzle, PTFE/Teflon Spiral Nozzle, Ceramics Spiral Nozzle, SiC/Silicone Carbide Spiral Nozzle ...