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John Blue VisaGage II Four (4) Flow Monitor Assembly | SMFD4

5.00 LBS
Calculated at Checkout
John Blue SMFD4 Product Manual:
SMFD4 Product Manual

John Blue VisaGage II Four (4) Flow Monitor Assembly | SMFD4

Set of 4 Flow Monitor Assembly


  • Inlet Size: 3/8" NPT female
  • Outlet Size: 3/8" NPT female
  • Spray Type: 4 bodies
  • Ball Size: (20) 1/2" dia.
  • End Cap: Yes
  • O-Rings: Viton
  • Retainer Clip: Stainless


  • With the CDS-John Blue VisaGage II you will know immediately if an outlet is plugged, thus causing possible variations in your application rates.
  • So easy - See the balls in line and know your rate is uniform.
  • When ball is lower you know there is a restriction at the outlet, hose or opener supplied by that flow monitor.
  • A ball higher than the others is an indication that hoses or fittings supplied by that specific flow monitor is broken or has a leak.
  • Get the exact number of flow monitors for spraying or fertilizer applications by simply banking together single columns, part numbers SMSS1 (spraying) and SMFD1 (fertilizer applications).
  • The set of 4 flow monitor assemblies (SMSS4 or SMFD4) can also be connected for additional columns divisible by four. Clasp them together with the stainless steel clips and o-rings and go.
  • The CDS-John Blue VisaGage II allows the use of common stainless steel orifice plates.
  • Ports are standard NPT - Use our barb or convenient push connect fittings for simple installation.
  • Most parts are interchangeable with other brands such as Redball and Wilger Industries

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