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Grass DynaPro 21 inch undermount drawer slide gives a drawer a concealed sliding system underneath the box, which keeps cabinet interiors clean-lined while the drawer still runs on a guided track. The soft-close action in this undermount drawer slide slows the drawer as it nears the cabinet, which helps protect fronts and reduces impact on the slide over repeated use. Its full extension design lets the drawer open out to expose the full interior length, which makes it easier to reach items at the back of a 21 inch drawer. This slide is part of the Grass DynaPro line, which supports consistent use of the same running system across matching cabinetry. Grass America branding on this undermount slide ties it to a recognized hardware manufacturer, which helps maintain product continuity on repeat projects and service work.
This Grass DynaPro undermount drawer slide is defined as a 21 inch, full extension component, which sets expectations for the drawer depth and travel in a cabinet run. As an undermount slide, it supports the drawer from beneath rather than at the sides, which affects how the drawer box is built and positioned inside the opening. The soft-close function is integrated into the same 21 inch slide, so there is no separate closing device to coordinate with the runner length during installation. Its roller bearing zinc construction places the working elements inside a metal-bodied runner, which aligns the slide with typical industry mounting practices for undermount drawer hardware.
This Grass DynaPro 21 inch soft-close full extension undermount drawer slide suits cabinet layouts built around a 21 inch drawer depth, so the runner length corresponds to the box size and opening. In base cabinets or utility storage using this depth, the full extension design lets the drawer project out far enough to expose stored contents along the entire drawer bottom. Using an undermount slide keeps the hardware hidden below the drawer box, which is useful when a clean side profile is important for cabinet interiors. The Grass America DynaPro identity groups this slide with other DynaPro components, which supports consistent selection on projects that standardize around this undermount running system.
The combination of soft-close and full extension in this Grass DynaPro undermount slide means the same hardware both governs closing behavior and defines maximum travel, which simplifies layout decisions on a run of 21 inch drawers. Roller bearing zinc construction concentrates movement inside a protected metal channel, which helps the drawer maintain a steady path along the extension length when installed in line with typical undermount practice. The 21 inch designation gives a clear planning dimension for drawer box construction and cabinet carcass depth, so the slide length, box size, and face position can be coordinated across a bank of drawers. Using the same Grass America DynaPro part number F130135020299 PROMO on similar locations in a job helps keep replacement and future service work straightforward, because the installed undermount runners share the same functional characteristics.
The Grass DynaPro F130135020299 PROMO is a 21 inch soft-close full extension undermount drawer slide, so it supports the drawer from underneath while controlling both travel distance and closing behavior.
The soft-close function in this Grass DynaPro undermount slide slows the drawer near the end of travel, which reduces slamming and helps protect drawer fronts during everyday opening and closing.
Full extension on this 21 inch Grass DynaPro slide means the drawer can extend out to expose its full usable length, improving access to items stored at the back of the drawer.
A 21 inch undermount drawer slide like this Grass DynaPro model is used with drawer boxes and cabinet depths built around a 21 inch running length, aligning the slide with the drawer geometry.
Roller bearings in this Grass America undermount slide provide a rolling interface inside the runner, which supports consistent movement along the slide path under normal cabinet use.
The zinc finish on this Grass DynaPro undermount slide coats the metal components, which helps the slide handle typical indoor cabinet environments encountered in woodworking applications.
This Grass DynaPro 21 inch soft-close full extension undermount drawer slide from Grass America ties drawer depth, extension, and closing behavior into one runner, which streamlines planning a bank of drawers around a 21 inch layout. For cabinet or woodworking projects using undermount runners, the DynaPro designation and part number F130135020299 PROMO identify a specific Grass undermount slide that delivers concealed support, full travel, and controlled closing in a single component.
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