Optivision® Red:

• Creates highly visible red bubble edges for exact placement between the reading lines and optimal vision in bright and low light
• High contrast ratio between the bubble and vial liquid for faster leveling and more precise results
• Tilted angle of the vial for a direct line of sight
• UV resistant, no chemical additives that fade overtime, the vial will always maintain its original color contrast and visibility
• Reading lines painted inside the vial for guaranteed precision

Plumb Site® Dual-View™ Vial:

• A unique front view of the vertical vial through a one-to-one reflection of the vial
• Allows a complete field of vision for a true plumb reading without parallax error
• No neck or back strain from trying to read a difficult to see plumb
• This superior accuracy allows to get the job done faster and easier