PureFlo PTFE filter capsules are well-suited for critical applications where superior flow and particle removal efficiency at 0.1 to 10.0 micron is required. Features and Options: High Quality & Economically Priced; PTFE Membrane / PP Components; 5 Capsule Lengths Available; 100% Integrity Tested; 5 Capsule Lengths Available; Flushed with Pyrogen Free Water