What are the Warner Perfusion Manifolds?

The Warner perfusion manifolds converge 2 to 8 perfusion input lines into a single common output with minimal dead volume — the unsung but essential piece between a multi-channel valve controller and the recording chamber. Four series cover the full perfusion-flow envelope: MP for gravity-fed systems with PE-160 tubing, MPP for pumped or pressurized systems with stainless-steel hypodermic input ports, and MM / ML for the SF-77 Perfusion Fast-Step at low volumes and slow flow rates.

Dead volume across all series sits between 3.5 and 5 µL — small enough that solution changes at the chamber follow the upstream valve switch with negligible delay even at slow flow. Manifolds are PTFE (MP) or Delrin (MPP, MM, ML); both are autoclavable and chemically resistant.

Key Features

• Four series for four flow regimes: MP for gravity, MPP for pumped/pressurized, MM and ML for low-volume fast-step.
• 2–8 input ports: Match the number of channels on your valve controller.
• Low dead volume: 3.5–5 µL — negligible delay between valve switch and chamber arrival.
• PTFE or Delrin: Chemically resistant, autoclavable.
• Drop-in tubing fit: MP for PE-160 friction fit, MPP for PE-160 over hypodermic ports, MM/ML for PE-50 input + PE-10 or PE-50 output.
• Pin plugs included: Block unused input ports.