Looking for Tankless Reverse Osmosis (RO) Water Filtration System Under Sink.

Buy offer Details

Hi
I’m looking to source a premium reverse osmosis water filtration system with remineralisation, similar in level to the Waterdrop G3P600 (example link : Waterdrop G3P600).
Key specifications we’re looking for :
Tankless under-sink design
400–600 GPD flow rate (minimum)
2 : 1 pure-to-drain ratio or better
Built-in remineralisation/alkaline stage (or add-on cartridge)
EU certifications : NSF/ANSI 58 & 372, CE, RoHS
Our focus is EU/UK customers, and the business will operate on Shopify with a DDp model.
Could you kindly confirm the following :
DDP & Integration
Do you support per-unit DDP direct to EU/UK customers?
Our store is on Shopify. Ideally we’d use Zendrop or a similar platform for automation. If not, do you offer a plugin or API connection so orders, tracking, and returns are seamless (not manual)?
Branded Samples
To launch properly, we’ll need a branded sample for content and marketing.
What branding options do you offer (logo on the unit, box, manuals, inserts, etc.)?
Please confirm the cost + delivery time for 1–3 branded samples to Spain.
Per-Unit Pricing
What is your total landed cost per unit in EUR, including product + shipping + branded packaging, for DDP orders to EU/UK customers?
Shipping
What are your fastest delivery times to EU/UK for DDP?
Do you provide DDP shipping (all tax included so customers aren’t charged at delivery)?
Are there alternative shipping options that can balance cost and speed?
Validation Content
Do you have videos (demo, installation, use) or high-quality images we can review in advance?

We’re viral marketers with strong experience scaling e-commerce products. The right supplier and seamless DDP process will allow us to launch quickly at volume. If you also have other similar models at the same or better level than Waterdrop, but more cost-effective, please feel free to share them.
Looking forward to your reply,
Adam