Bathroom Sink Drains & Drop-In Ceramic Basins – OEM Supply | SANIKB

SANIKB supplies OEM bathroom sink drains and drop-in ceramic basins for global wholesalers, contractors, and project builders. Durable fireclay and porcelain options, universal drain sizes, bulk packaging, and customization for residential and commercial installations.

Bathroom Sink Drains & Drop-In Ceramic Basins – OEM Supply | SANIKB

OEM & Bulk Drop-In Bathroom Sinks for Global Projects


SANIKB focuses on B2B supply of drop-in bathroom sinks for importers, wholesalers, and project contractors. Our factory supports container-level orders, mixed sizes in one shipment, and customized cartons or barcode labels. Compared with retail brands at Home Depot or Lowe’s, we position our drop-in bathroom sinks as stable, long-term OEM lines that can be repeated across multiple projects and markets. This helps you keep the same bathroom sink model in stock while optimizing cost and logistics.

Standard Sizes & Shapes for Easy Replacement


Our catalog covers the most requested sizes in the market: 19" x 16" oval drop-in bathroom sinks, 20" x 17" drop-in bathroom sinks, round 17"–19" bowls, and small drop-in bathroom sinks for compact powder rooms. Self-rimming edges are designed to cover minor cutout errors, making replacement faster for renovation projects. Rectangular drop-in bathroom sinks and square drop-in bathroom sinks are also available for modern designs, all with standard drain and faucet hole positions to match existing bathroom sink plumbing.

Material, Glaze & Drain Compatibility


All SANIKB drop-in bathroom sinks use high-quality ceramic / vitreous china, fired at high temperature for low water absorption and strong stain resistance. The glossy white glaze resists black gunk, mold, and typical bathroom sink drain buildup, making daily cleaning easier for end users. Each basin is matched with a standard bathroom sink drain size (usually 1-1/4" or 1-1/2") so your local plumbers can use universal pop-up or grid drains without special adapters. For specific markets we can pre-match OEM drain kits and P-trap solutions.

Installation-Friendly Design for Contractors


Drop-in bathroom sinks are still one of the fastest options for hotel and apartment projects because they do not require complex undermount brackets. Our self-rimming drop-in bathroom sinks are designed with flat, stable rims and clear installation instructions, so your installers can simply cut the countertop, place the basin, apply sealant, and connect the drain. Standard rough-in height for bathroom sink drains is considered during design, reducing alignment problems between the sink outlet and wall drain. This saves labor cost and minimizes after-sales issues.

Solutions for Small Bathrooms & Powder Rooms


For narrow vanities and guest bathrooms, SANIKB offers small drop-in bathroom sinks and compact round or oval bowls that still meet comfortable washing depth. These models are ideal for small half-bathroom projects, powder rooms, and RV or mobile home bathroom concepts. With the right combination of a small drop-in sink and a compact faucet, contractors can keep the bathroom sink drain line simple while freeing more counter space for daily use.

Why Work with SANIKB as Your Bathroom Sink Manufacturer


As a factory-backed supplier, SANIKB provides more than just individual drop-in bathroom sinks. We help you build a complete bathroom sink line: product roadmap, mold management, packaging design, and marketing materials if needed. Our team understands export documentation and certifications for North America, Europe, and other regions, and can coordinate mixed orders that include drop-in bathroom sinks, pedestal basins, and kitchen sinks in one container. For serious buyers, we can develop exclusive models to protect your market and margin.

Frequently Asked Questions

What is a drop-in bathroom sink and how is it different from an undermount sink?


A drop-in bathroom sink, also called a self-rimming drop-in bathroom sink, is installed from above the countertop. The rim sits on top of the counter and is sealed with silicone. An undermount bathroom sink is fixed from below the countertop and requires more hardware and labor. For large projects, drop-in bathroom sinks are usually faster and cheaper to install and replace.

What are the standard sizes for drop-in bathroom sinks in your catalog?


Our main sizes include 19" x 16" oval drop-in bathroom sinks, 20" x 17" drop-in bathroom sinks, 21" x 19" rectangles, and smaller 16"–18" round or oval drop-in bathroom sinks. We can also open or adjust molds for special dimensions if you have stable project volume or OEM demand.

Which drain size do your drop-in bathroom sinks use?


Most SANIKB drop-in bathroom sinks are designed for standard bathroom sink drain sizes: 1-1/4" or 1-1/2" outlets, depending on the target market. This makes them compatible with common bathroom sink drains, pop-up drain assemblies, and P-trap kits available in local plumbing stores, reducing installation risk.

Can you supply drop-in bathroom sinks with and without overflow?


Yes. We offer both overflow and no-overflow options to match local plumbing codes and design needs. For hotels and residential projects, most buyers choose drop-in bathroom sinks with overflow drains to improve safety. For vessel or special designs, we can provide non-overflow versions on request.

Do you support OEM branding on drop-in bathroom sinks and packaging?


We support full OEM services for drop-in bathroom sinks, including logo on the basin, model numbers, custom cartons, and barcode or label printing. For distributors and retailers, we can align your packaging with existing product ranges so your bathroom sinks and bathroom sink drains share one brand identity on the shelf.

What is the minimum order quantity (MOQ) for drop-in bathroom sinks?


For standard models, our usual MOQ is one mixed container, and we can combine different sizes of drop-in bathroom sinks in one shipment. For new molds or exclusive designs, we will discuss a reasonable starting quantity based on your target market and sales plan.

How are the drop-in bathroom sinks packed to avoid damage during shipping?


Each drop-in bathroom sink is packed with foam or cardboard protection, strong export cartons, and optional pallets for easier container loading. We have experience shipping to North America, Europe, and Latin America, and our packaging is tested to reduce breakage and protect the rim and drain area during transport.

Can I use your drop-in bathroom sinks for renovation projects where I only replace the bowl?


Yes. Many of our buyers use SANIKB drop-in bathroom sinks to replace old basins while keeping existing countertops and bathroom sink drain plumbing. The self-rimming design covers minor differences in cut-out size, and the standard drain hole position makes it easy for plumbers to connect to the existing P-trap.

Do you offer color options besides classic white?


For large orders, we can produce colored or matte-finish drop-in bathroom sinks, such as matte white, light grey, or soft black, to match modern bathroom designs. These options are usually made as OEM lines with specific MOQs, while classic glossy white remains the most cost-efficient and widely accepted choice.

How can I develop an exclusive drop-in bathroom sink model with SANIKB?


If you want a unique drop-in bathroom sink for your brand or projects, we can start from your drawing or size requirements, evaluate mold cost, and give you a project quotation. After samples are approved, we will lock the mold for your company and produce only for your brand or channel, helping you build long-term differentiation in the bathroom sink market.