Salice Progressa+ 21" Push-to-Open Full Extension 170 lb Undermount Drawer Slide, Zinc, G7U9P533CXF6

Zinc Undermount Slide for Handle-Less Frameless Drawers With Thick Sides

The Salice Progressa+ 21 inch push-to-open undermount slide is a concealed, full-extension runner built for frameless cabinets with 3/4 inch (19mm) drawer sides. At 170 lb per pair, it handles substantially more load than standard undermount lines, making it a practical choice wherever thick-sided boxes and heavy drawer contents come together.

Key Features

• Push-to-open mechanism ejects the drawer with a light press on a handle-less front, keeping the cabinet face hardware-free.
• Full-extension travel brings the entire 21 inch drawer out to the cabinet face for complete access to rear contents.
• 170 lb capacity per pair places this slide in heavy-duty territory for an undermount runner.
• Engineered for 3/4 inch (19mm) drawer sides, matching shops that build from thick hardwood or plywood stock.
• Frameless cabinet installation mounts directly to the cabinet side panel without face-frame clearance concerns.
• Steel construction with zinc finish provides lasting durability through years of indoor service.

Where This Slide Gets Used

The push-to-open motion makes this slide the right call for modern handle-less kitchens where a seamless front is part of the design intent. A light press on the drawer front trips the mechanism and the drawer comes out — no pull, no knob, no visual interruption on the cabinet face. Because this is a plain mechanical push-to-open model, it closes without damping. If a damped, silent close matters as much as the handle-less opening, the soft-close version of this line is the better fit. For the application where clean lines and high capacity are the priorities, this is the slide.

The 170 lb per pair rating also makes it suitable for utility drawers carrying real weight: deep pot drawers, file drawers, or base cabinet pull-outs stacked with heavy stock. The 21 inch length suits standard base cabinet depths comfortably.

Build and Finish

Steel members with a zinc finish deliver the corrosion resistance needed for indoor cabinetry. Because the slide rides completely beneath the drawer box, the finish stays out of sight once the drawer is hung — its job is protecting the metal, not contributing to the look of the cabinet interior. The Progressa+ series is engineered around 3/4 inch (19mm) drawer side material; the slide spacing, locking device geometry, and box-width formula all assume that thickness. Build the drawer box to Salice's published specification for the Progressa+ series: nominal 21 inch length, correct box width for the side clearance, bottom recess, rear notch, and the drilling pattern for Salice Progressa+ front fixing clips.

Who Should Order This Slide

Cabinet shops building thick-sided boxes for modern, handle-less frameless kitchens will find this slide addresses a specific gap: most undermount lines top out at 100 to 110 lb and are sized for 5/8 inch sides, leaving shops that work in 3/4 inch material without a clean concealed option at real weight capacity. The Progressa+ fills that space. It also suits designers specifying large-format drawer fronts where a heavy slab front demands both higher load capacity and handle-less hardware. Homeowners renovating with frameless cabinetry can use this slide wherever the drawer box is already built to 3/4 inch sides and the handle-less look is required.

Frequently Asked Questions

The Right Slide for a Heavy Handle-Less Build

When the design calls for a seamless front on a frameless cabinet with thick-sided, heavily loaded drawers, the Progressa+ 21 inch push-to-open slide delivers the capacity and motion in one concealed runner — with no hardware interrupting the cabinet face.