Chesterton’s 11K EZ Stack Pack is a patented 2-component design for use in hydraulic applications to eliminate leakage and lower operating costs.

The 11K combines two different materials:

Red Polymer (95A durometer) is formulated with high abrasion resistance,
low compression set properties and excellent extrusion resistance.

Blue Polymer (85A durometer) offers properties similar to the red polymer but is softer, which enables it to better conform to surface irregularities.

• Provides virtually leak-free sealing.
• Works on both new and worn equipment.
• Split configuration simplifies installation.
• Eliminates future shimming/adjustments.
• Custom engineered sizing to fit exact equipment dimensions.

 Other 11K designs/profiles include:

• 11KSPCR - spacer
• R11KT - top only sealer ring
• R11KB - bottom sealer ring