The Evolution Replacement Knob Kit is a replacement part for compatible Evolution Trillium series rollators. It supplies the adjustment knobs used to secure adjustable components such as the handle-height system.

Over time, adjustment knobs can crack, strip, or go missing, which prevents the handles from holding their set position. This kit is intended to restore that tightening function so the handle height and other adjustable parts stay where they are set.

The kit is model-specific. Confirm compatibility with your rollator before ordering. 

Features

• Replacement adjustment knob kit for Evolution Trillium series rollators
• Designed to secure adjustable rollator components, including handle-height adjustment points
• Intended to restore proper tightening when original knobs are worn, cracked, or missing
• Model-specific part, straightforward to install depending on the rollator setup
• Includes 2 knobs and 2 screws

Directions for Use

• Remove the worn, cracked, or damaged knob and its screw from the adjustment point.
• Fit the replacement knob and screw and install according to the manufacturer's instructions for your rollator.
• Tighten each knob fully and confirm the handle height and any other adjustable components hold their position before the rollator is used.
• Re-check the tightness of each knob periodically as part of routine maintenance.
• Do not use the rollator if a knob is cracked, stripped, or will not hold securely. Replace it before use.
• Do not substitute knobs or screws that are not specified for your rollator model.
• Do not overtighten, as this may damage the knob or the frame.

Care Instructions

• Wipe with a damp cloth and mild soap. Dry thoroughly.
• Do not use abrasive cleaners or solvents.
• Inspect for cracks, thread wear, or slippage during routine rollator checks.

Specifications

Package Includes

• 2 x replacement adjustment knobs
• 2 x screws