21" F70 Full Extension Soft-Close Undermount Drawer Slide Frameless Salice G7U6S533CXB

Zinc Undermount Drawer Slide for Frameless Cabinet Builds

The Salice F70 21-inch soft-close undermount drawer slide is a full-extension, concealed runner made for frameless cabinet construction. It carries drawers up to 170 lb per pair, closes with an integrated soft-close damper, and mounts beneath the drawer box where it stays hidden when the drawer is open. Sold as a pair.

Key Features

• 170 lb weight capacity per pair — handles heavily loaded kitchen, bath, and utility drawers with confidence.
• Full extension — brings the entire drawer out to the cabinet face so rear contents are fully reachable.
• Integrated soft-close — a built-in damper catches the drawer near the end of travel and settles it shut silently.
• Concealed undermount mount — the slide sits beneath the drawer box and stays out of sight when the drawer is open.
• Frameless cabinet fit — designed for direct side-panel mounting on Euro-style, frameless cabinet construction.
• Compatible with 1/2 to 5/8 inch drawer sides — works with both thinner and standard drawer box side thicknesses.

Built for Production Frameless Cabinetry

The F70's frameless-specific design means it mounts directly to the flat interior side panel — no rear brackets, no adapter hardware. In a modern, line-bored frameless box, the slide seats on the 32mm grid and the drawer drops in cleanly. The 170 lb per pair rating puts it well above the standard kitchen slide class, so it handles pots-and-pans drawers, deep pantry pull-outs, and heavily stocked utility drawers without approaching its limit. Full extension is the right choice wherever the back of the drawer needs to be reachable — a spice pull-out, a file drawer, or a base cabinet with deep storage.

Zinc Finish and Steel Construction

The slide is built from steel with a zinc finish — a functional, corrosion-resistant surface that protects the runners through years of indoor cycling. Zinc is the standard finish class for production drawer slides and holds up well in the temperature and humidity range of a residential or light-commercial kitchen. The finish is utilitarian by design: once installed, the undermount slide is hidden beneath the box, so its appearance matters less than its durability and dimensional accuracy.

Who This Slide Suits

Cabinet shops building frameless boxes with drawer sides between 1/2 inch and 5/8 inch will find the F70 fits cleanly into a standard production workflow. The 21-inch nominal length suits a 21-inch drawer box built to Salice's specification — measure the cabinet interior depth first and confirm the box is built to the slide's nominal length, since undermount fit is engineered rather than adjustable. Designers specifying high-capacity storage for residential kitchens or light commercial cabinetry get a full-extension, soft-close undermount at a robust 170 lb rating. Contractors installing frameless cabinetry in multifamily or hospitality settings will appreciate the consistent soft-close behavior across a full run of drawers.

A Concealed Slide That Earns Its Rating

At 170 lb per pair with full extension and integrated soft-close, the Salice F70 21-inch slide handles the drawers that take the most daily use — and stays hidden beneath the box while it does it.