Flow Control Metering Valve/ Alum Knob- Metering Valve Needle Brass

The Valve that Seals (will not suck air). 3500 PSI to 28" vacuum No leak Viton gland seal isolates metering threads from solution Stainless steel needle/brass seat 1/4" FPT ports Heavy-duty brass bar stock body 195F rated temperature Panel mounts 5/8" hole Large easy-grip four-lobe handwheel Aluminum or Poly available