Round Drop-In Solid Surface Bathroom Basin with Overflow, 420mm
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Shape & size
Shape and size of Round Drop-In Solid Surface Bathroom Basin with Overflow, 420mm
Send a spec. Get a real quote in 12 business hours.
Engineer-reviewed. cUPC · CE · ISO 9001 ready. 30–45 day lead time, FOB or CIF.
12 consecutive years at KBIS and IBS.
Factory documentation
Certification scope depends on the selected model and destination market. Request model-specific documents with your quotation.
Drop-In Bowl
A 420mm round drop-in basin with overflow
RST420 is a round drop-in bathroom basin in solid surface at 420mm, supplied with an overflow.
Rim sits on the counter
The bowl drops into a cut-out and the rim carries it, so the counter takes the load and the installation stays serviceable.
Overflow included
The overflow is part of the basin, which matters where local practice or the client brief requires one on a bathroom basin.
Above-counter vessels in the same round shape are listed in the solid surface basin range if the counter cannot be cut.
Fit & Clearance
Cutting the counter for a drop-in bowl
Drop-in basins depend on an accurate cut-out, so the template is the critical document.
- Diameter
- 420mm nominal
- Mount
- Drop-in
- Overflow
- Included
- Reference
- RST420
Ask for the cut-out template with the order and give it to whoever fabricates the counter. An oversize cut-out cannot be corrected once the stone is machined. Check the waste connection has room under the counter as well.
Do not cut a counter from the product outline. Use the published cut-out figure.
Construction & Finish
One casting carries the bowl, the rim and the overflow
Bowl, rim and overflow are all solid surface, in the listed matte white finish.
Matte White
Rim and bowl in one component
The supporting rim is part of the basin, so nothing is bonded on afterwards at the point where the weight is carried.
A drop-in bowl leaves a sealed line where the rim meets the counter. Specify a sealant that suits the counter material and tell the installer to keep the bead thin so it stays easy to renew.
Sealant is not supplied. Confirm what the counter fabricator will use.
Compliance
Confirming requirements for drop-in basins
We supply the dimensioned drawing so your compliance team can assess the reference directly.
RST420 is cUPC listed. The published specification also holds material, type, mount, finish, size and MOQ. Before it goes into a submittal, request the current listing number and certificate validity so the documentation matches your destination market.
Overflow presence is a design feature here, not a regulatory statement. Any market rule should be checked against the actual drawing before you commit to a program.
Procurement
Ordering RST420 with counter fabrication
RST420 is quoted in step with the counter fabrication programme.
- Published MOQ
- Confirmed per quote
- Standard Lead Time
- 30–45 days (typical)
Diameter, rim width and hole layout can be modified for an own-brand drop-in line through the SANIKB OEM and ODM program. Where counters are fabricated locally, order basins to arrive before the stone is cut.
Include these details with the RFQ
- Quantity of RST420
- Cut-out template required
- Counter material and thickness
- Waste and pop-up requirement
- Destination port
- Delivery sequence against counter fabrication
- Packaging requirement
Ask for the MOQ figure when you request the cut-out drawing.
How we work
From enquiry to shipment
A factory-direct process built for importers, distributors and project buyers. No trading layer in between.
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01
Send the enquiry
Tell us the model, quantity, destination market and any branding or packaging requirement. A spec sheet or drawing helps but is not required to start.
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02
Our sales team contacts you
A named account manager follows up by email or WhatsApp, confirms the specification and clarifies anything missing before pricing.
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03
Quotation
You receive a written quotation with unit price, MOQ, packing details, lead time and the trade term you asked for. Entry, mid and premium build levels can be quoted side by side.
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04
Sample approval
We send a sample for finish, function and packaging sign-off. Branded samples are produced once artwork is confirmed.
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05
Production and shipment
Mass production starts after sample approval and deposit. QC and inspection run before loading, then the order ships to the agreed port.
OEM and ODM to your specification
We develop to a brief. Send a reference model, a drawing or simply the price band and market you are targeting, and we will propose what fits. Entry, mid and premium builds are all available from the same factory.
- Your logo on product, carton and documentation
- Private-label packaging and manuals
- Custom finish matched to your standard
- Custom dimensions and tooling where volume supports it
- Product development from your reference or price target
- Destination-market documentation prepared on request