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Oil Sight Glass 1oz x 1/2" NPT with .250 Drain Valve Magnet

Des-Case Oil Sight Glass 1oz x 1/2 inch NPT with .250 Drain Valve Magnet

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$163.29  Cart is in US Dollar
Oil Sight Glasses

Oil Sight Glasses

Brand: Des-Case
Part Number:


With the Oil Sight Glass (OSG), users have an immediate visual inspection of the oil and the ability to drain any accumulated water. The OSG is installed directly to a drain port located at the bottom of a reservoir or with an elbow for drain ports located on the side of the equipment. The spring loaded drain valve is utilized to purge any accumulated water. Any sediment or particles in the lubricating fluid will migrate to the OSG where, upon inspection, the user can determine the appropriate action.


  • Thread size: 1/2" NPT
  • Sight Glass size: 1oz Material: Stain-resistant acrylic, Brass fittings standard
  • Recommended Temperature Range: -40°F to 200°F (-40°C to 93°C)
  • Maximum Operating Pressure: 65 psi (4.48 bar)
  • Chemical Compatibility: All gear, mineral and synthetic oils
  • Applications: Pumps, Gearboxes, Storage Tanks, Fluid-Lubricated Machinery


  • Can safely be used in temperatures as low as -40°F as long as they are not allowed to fill completely with water
  • 360° view of oil clarity
  • Easily collect and drain water
  • Durable and stain resistant
  • Designs available for space limitations
  • Easy to install