Pressure Monitor Set-35-SS/100-PRMSET-N35SS contains all items needed for immediate use: 316 stainless steel Adapter and matched PTFE sleeve, 1 pressure gauge, 1 pressure tube-35 mL, 10 Septa-35 mL-180 psi, etc. The parts with direct chemical contact are made of 316 stainless steel, PTFE, Simriz, or glass.