P-K Oil Sight Glass

PK Oil Sight Glass

Constant Bearing Oil Inspection

In the 1960’s, local California refinery personnel, addressed a need for visual oil inspection in operating pumps and PK Oil Sight Glasses were invented. Since then they have come to be known by many names, sediment glass, sediment bottle, Deb jug, and water finder to name a few. To this day, PK Machine brings you the first, the original and the best Oil Sight Glasses available anywhere!

Used to monitor oil contamination, discoloration and water contaminate level, PK Oil Sight Glasses are:

  • Optical Grade Acrylic construction
  • Chemically compatible with gear, mineral and synthetic oils
  • Chemical and corrosion resistant
  • Operates to 200 degF and 300 psi
  • Available with multiple brass drain valve options


  • Choose your PK Oil Sight Glass below. These are sold in a minimum quantity of 8 which helps us keep the cost down for you. Please call us if you have any questions at (530)878-4588.