4 Pack Sliding Screen Door Roller Wheels,Steel Ball Bearing Replacement for B691 & B695,Fits for Columbia Doors

Features

• Universal sliding door rollers compatible with Columbia systems (replaces B691/B695) and most spring-tension rollers. Steel ball bearing design ensures smoother glide and longer lifespan than standard plastic wheels.
• Spring-loaded 1" roller with adjustable nylon housing maintains optimal tension on sliding doors
• Tool-free height adjustment via top-mounted screw ensures smooth door alignment. Zinc-plated construction resists corrosion and stripping
• High-density polyethylene frame with slimmer profile than B646/B737 models. Enhanced durability at reduced weight for smoother sliding door operation
• 4-pack sliding door rollers for top/bottom tracks. Replacing all rollers simultaneously ensures smooth operation and prevents uneven wear, extending door functionality