DUTTON-LAINSON Grease Keeper 2.328" Dust Cap #21843

Dutton-Lainson Grease Keeper dust caps measure 2.328" and come with a zerk fitting and a vinyl cover for each. 

Specifications:

• Grease Keeper® 1-1/4" wheel bearing protectors
• Zinc plated steel dust caps with grease zirk and pressure relief valve
• Protects wheel bearings from water and dirt with a positive hub seal
• Supplies a reserve of lubrication and has built-in positive relief
• Longer time between periodic repacking of bearings
• Protects and extends bearing life
• Zirk permits frequent greasing and relief valve eliminates excess pressure on grease seal
• No complicated moving parts or gaskets that require costly maintenance and replacements
• Easily installed in seconds- no need to remove hubs
• A positive hub seal minimizes water entry when wheels are submerged
• Includes two protectors and two vinyl dust covers
• Made in the U.S.A.