Prime Line Products B 691 Narrow Screen Door Roller 2 Pack

Product Description

The PRIME LINE PRODUCTS B 691 is a narrow roller assembly designed for sliding screen doors, sold in a 2-pack. The assembly features a high density polyethylene frame, an adjustable high density polyethylene inner housing, and a high density polyethylene roller. The frame profile is thinner than the Prime Line part B 646, making it the correct choice where a narrower form factor is required. The assembly inserts into the bottom or top rail of a sliding screen door and is secured with the included screws. The roller position adjusts to achieve proper door travel alignment. Licensed contractors, glaziers, and experienced window and door technicians handle installation of this type of hardware.

This roller assembly is used on sliding screen doors in residential applications. It is identified as the style found on Columbia sliding screen doors and is also used on a variety of other sliding screen door manufacturers. Because roller profiles vary widely across manufacturers, technicians should carefully compare frame dimensions and housing design against the existing roller before ordering. The adjustable inner housing accommodates minor positional variation at installation, reducing the need for frame modification.

Key Features

• Narrow high density polyethylene frame — thinner profile than Prime Line B 646
• Adjustable inner housing allows roller positioning to suit door track alignment
• High density polyethylene roller resists corrosion and moisture
• Installs into top or bottom rail of sliding screen door
• Mounting screws included
• Sold as a 2-pack for single-door service

Compatibility

This roller assembly style is found on Columbia sliding screen doors and is also used on a variety of other sliding screen door manufacturers. Compare frame dimensions and housing design carefully with the existing roller before installation, as profiles vary by manufacturer and door vintage.

Installation Notes

Installation is typically performed by a glazier, window and door technician, or experienced handyman. Remove the screen door from the track before servicing the roller assembly. Power tools are not required, but a Phillips screwdriver is needed to secure the mounting screws. Always compare the new assembly dimensions and design against the old roller before final installation to confirm correct fitment.