Listing is for one (1) Service Caster Series #20 swivel caster with a top lock brake and 4" diameter by 1-1/4" wide polyolefin wheel capable of supporting 300 lbs. per caster. 109RA30 RA-30 replacement part fits Advance Tabco can racks CR10-162M-X, CR10-54, CR10-72-X, CRPL10-54, CRPL10-72-X, CRSS10-54, and CRSS10-72. When searching for a reliable and durable solution to your Advance Tabco replacement caster needs, consider Service Caster Series 20 top plate polyolefin wheel casters. The Service Caster Series #20 features polyolefin wheels that have a high resistance to shock and impact damage while also being non-marking protecting floors. Finely crafted with a bright zinc plated finish and heat-treated ball bearing raceway, these Service Caster high performance Advance Tabco replacement casters offer polyolefin wheels that are best used on smooth, flat, and clear industrial or commercial settings where materials may be stationary for long periods. These versatile casters are ideal for a wide range of applications. Service Caster is unsurpassed in quality, reliability, and excellent customer service. Count on us to move you forward. Fits Additional Advance Tabco Models: CR10-162M-X, CR10-54, CR10-72-X, CRPL10-54, CRPL10-72-X, CRSS10-54, and CRSS10-72.