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This is the left-hand cabinet member of the Grass Dynapro undermount drawer slide system, sized for 21-inch drawer boxes. It mounts beneath the drawer box, out of sight, and pairs with the matching right-hand cabinet member and two drawer members to complete a drawer installation.
The Dynapro is Grass's flagship undermount program, built for kitchen, bath, and furniture cabinetry where a clean, hardware-free look is the goal. At 21 inches, this member suits standard base cabinet drawers in residential and light commercial work. Because Dynapro cabinet members mount beneath the box rather than alongside it, the full interior width of the drawer opening stays visible and usable when the drawer is open — no visible rails, no exposed steel.
Cabinet shops running production lines will recognize the bulk-pack format: single members priced for volume pulls rather than retail pairs, so you order exactly the quantity your run calls for. The Dynapro system also supports Tipmatic Soft-close and Sensomatic electro-mechanical opening as add-on options, making this member a foundation for handle-less front configurations where those systems are specified.
Dynapro cabinet members are steel construction with a zinc finish that stands up to the wear of daily cycling in a production environment. The zinc coating provides corrosion resistance appropriate for dry, indoor cabinet installations. The member's profile is engineered to the Dynapro specification, so the drawer box seating, front locking device engagement, and any rear bracket requirements all follow Grass's published dimensions for this system.
Drawer boxes for this member must be built to the Dynapro 21-inch nominal length spec, including the correct side thickness and rear notch. Dynapro slides are available in versions for both 5/8-inch (16mm) and 3/4-inch (19mm) drawer sides; confirm your drawer side thickness matches this SKU before ordering.
Cabinet shops and custom builders specify Dynapro for projects where the drawer interior needs to be fully accessible and the hardware completely hidden. The 21-inch length is a production staple in base cabinet work, and ordering left- and right-hand members separately gives a shop the flexibility to stock and pull by the piece rather than committing to fixed pair quantities. Designers specifying Dynapro for handle-less kitchens will find this member compatible with the full Dynapro motion and adjustment accessory lineup, including 3D front adjustment and Tipmatic Soft-close, when those components are ordered separately.
This is the left-hand cabinet member only. A complete drawer requires one left-hand cabinet member, one right-hand cabinet member, and two drawer members. Order all components before starting the installation.
Dynapro slides are made in separate versions for 5/8-inch (16mm) and 3/4-inch (19mm) drawer sides. Confirm which version this SKU is before building the drawer box, as the two versions are not interchangeable.
Dynapro can be installed in face-frame cabinets, but face-frame installations require rear mounting brackets specific to the Dynapro system. Those brackets are sold separately; do not install this member in a face-frame cabinet without the matching rear support hardware.
Yes. The Dynapro system supports Tipmatic Soft-close (combined push-to-open with soft-close) and Dynapro-matched front locking devices with adjustment. All accessories must be Dynapro-specific; components from other undermount brands will not fit.
The bulk-pack format lets production shops order the exact quantity their run requires. Order one left-hand and one right-hand cabinet member, plus two drawer members, for each drawer in the project.
When the job calls for hardware that disappears and drawers that open smoothly, the Dynapro 21-inch left-hand cabinet member gives you the starting point — pair it with its right-hand counterpart and the appropriate drawer members to complete the installation.