The model P2021 is a simple, reliable, efﬁcient and effective means of eliminating static in a variety of industries, including electronics, optics, graphics and ﬁnishing. Easy to install on any clean, dry compressed air or inert gas line, the P2021 emits a powerful stream of ions to quickly neutralize electrostatic charges. By design, the P2021 never goes out of balance, so it does not require periodic calibration. In addition, it requires no electrical power to operate, so it’s intrinsically safe for use in ﬂammable or explosive environments. Maximum air pressure 100 psi. Optimum ionization at 35 psi. 2.5" long x 0.5" diameter. Thread size 1/8-27 NPSM. Devices made to order to ensure our customers get the longest use possible.