SANIKB NA-S Series Frameless Sliding Bathtub Door

Select a configuration to match the opening and the price tier you're quoting:

• Bypass / double sliding — NA-S01, NA-S01B, NA-S02. Two panels slide past each other on a stainless top rail, giving access from either end. The most common choice over a bathtub. Exposed Ø40/Ø60 rollers; standard or soft-close glide.
• Big-roller sliding — NA-S03, NA-S03B. A single sliding panel on oversized Ø55/Ø70 exposed rollers for a bold hardware statement. Soft-close available.
• Single frameless sliding — NA-S05, NA-S05B. A clean single-panel slide on Ø55 rollers for a minimal frameless look. Soft-close available.
• Frameless pivot — NA-S07. A hinged pivot door (not sliding) for narrower walk-in openings. Uses stainless hinges with optional wall clips, comes in chrome only, and adds a 1/4" glass option.

Across the sliding models, two features carry the series. Soft-close (standard on NA-S01B, NA-S03, and NA-S05) draws each panel to a controlled, silent stop instead of slamming, which reduces impact stress on the glass and hardware, lowers field complaints, and supports a higher-end spec for hospitality and multifamily work. The exposed stainless rollers — Ø40/Ø60 on the bypass models, Ø55/Ø70 on the big-roller models, Ø55 on the single frameless — run along an SS top rail as a visible, statement detail. Because the rollers are exposed and standardized, inspection and replacement are straightforward, which helps distributors and maintenance teams keep parts on the shelf instead of special-ordering them.

The sliding models come in three finishes — matte black, chrome silver, and brushed nickel — so you can match a single supplier across a full project package; the NA-S07 pivot is chrome only. Custom sizing is available throughout each model's range to fit specified rough openings.

As a factory-direct OEM/ODM manufacturer, SANIKB supports private-label production: custom handle profiles, branded packaging, white-label cartons, and rebrandable installation guides. This makes the NA-S Series a practical base line for importers and brand owners who want to ship under their own SKU and identity rather than resell a generic unit.

Used as a sliding bathtub door, the bypass models (NA-S01/S01B/S02) are the most common choice over a tub, where two panels give access from either end; the single sliding and big-roller models suit alcoves and walk-ins, and the pivot (NA-S07) fits narrower openings. Typical buyers:

• Distributors and importers stocking standard sizes across configurations for resale
• Multifamily and apartment project buyers needing repeatable, value-engineered specs
• Hospitality buyers upgrading guestroom baths with consistent finishes across rooms
• Builders and remodelers working with real-world openings — wall adjustment (35–50mm by model) absorbs the out-of-square walls common in U.S. bathrooms
• Kitchen & bath showrooms offering a standard and a soft-close tier in multiple finishes
• Private-label brands building their own bath hardware line