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Knape and Vogt MUV 21" soft-close undermount drawer slides give a 21-inch drawer travel with a soft-closing action, so drawers extend fully while returning smoothly, which supports controlled access and a quieter close on completed cabinetry. These slides are designed as full extension undermount drawer slides, which places the hardware beneath the drawer box, keeping sides clean while still allowing access to the full drawer length for storage or tool access. The product is classified as undermount drawer slides, so it suits projects where hidden slide hardware is preferred, such as residential built-ins or commercial casework where appearance matters. The slides are described as soft-close full extension undermount drawer slides, so they combine full access with controlled closing, which helps reduce slam impacts on the cabinet and drawer front over time. The manufacturer part number MUV34AB 21 identifies this specific Knape and Vogt configuration, which helps match replacements or plan consistent hardware across a job.
The SAP description lists these as 21" MUV PLUS UM slides for 3/4" drawer, which means they are intended for drawer constructions where the specified drawer thickness is three-quarter inch, helping builders choose them when working with that material standard. The classification as undermount drawer slides means the runners attach under the drawer, so the drawer sides stay clear for 3/4" material layouts without leaving exposed slide hardware along the cabinet opening. The product name states a 21" length, so planning a cabinet depth around a 21-inch slide lets the drawer box and casework be sized together, supporting consistent reveals from cabinet to cabinet. Because the soft-close action is built into these full extension slides, planning the fit for 3/4" drawers also accounts for smooth closing behavior once the drawer is loaded in use.
The Knape and Vogt MUV 21" soft-close full extension undermount drawer slides are identified as undermount drawer slides, so they are suited to applications where the slides must stay hidden under the drawer box, such as kitchen, bath, or office cabinetry calling for clean side profiles. The SAP description notes they are for 3/4" drawer construction, so shops building drawers from three-quarter-inch stock can size their boxes to coordinate with these slides for consistent clearances across a run of cabinets. With a 21" length specified in both the product name and web description, the slides support drawer depths aligned to that measurement, which helps designers set cabinet interior depth and face frame or frameless layouts around a predictable runner length. Because the description calls them soft-close full extension undermount drawer slides, they serve installations where end users expect both full-depth access and a controlled closing motion, such as higher-traffic residential or commercial casework.
The manufacturer part number MUV34AB 21 uniquely identifies this Knape and Vogt undermount configuration, which helps installers and purchasing teams reorder the same soft-close full extension undermount drawer slides for repeat jobs so drawer action stays consistent across multiple units. The designation as 21" soft-close full extension undermount drawer slides means every slide in this listing shares the same nominal length, extension style, and soft-close function, supporting standardized drawer depths and predictable travel during layout, drilling, and installation. The SAP description calling out use with a 3/4" drawer ties the slides to a specific drawer thickness, which simplifies shop processes because drawer boxes can follow a single three-quarter-inch material recipe that aligns with these undermount runners. Since the category labels these as undermount drawer slides, installers know the hardware will mount beneath the drawer, supporting repeatable jig setups and machining steps that keep cabinet interiors visually consistent from bay to bay.
The MUV34AB 21 is an undermount drawer slide described as soft-close full extension, so it mounts beneath the drawer and allows the drawer to open fully while controlling the closing action.
The SAP description lists the 21" MUV PLUS UM slide for 3/4" drawer, so it is intended for drawer boxes built with three-quarter-inch material in the design.
The product is described as full extension and 21", so the slide length supports full extension travel for a 21-inch-rated undermount drawer installation.
These Knape and Vogt MUV slides are specified as soft-close, so they control the final closing distance, helping drawers shut smoothly and reducing slam forces on the cabinet.
The slides are identified as undermount and for 3/4" drawer, so they support three-quarter-inch drawer construction while keeping hardware hidden under the drawer rather than along the sides.
MUV34AB 21 is the manufacturer part number for this Knape and Vogt 21" soft-close full extension undermount drawer slide, which helps match the exact slide during ordering or replacement.
The Knape and Vogt MUV 21" soft-close full extension undermount drawer slides, identified by part number MUV34AB 21, pair a 21-inch undermount runner with soft-close action, which supports full-access drawer function and controlled closing on three-quarter-inch drawer constructions in cabinet projects.
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