Modular Systems 330Mm High Sink Mixer Watermark Approved HD4257

The Watermark HD4257 is a 330mm high commercial sink mixer that delivers reliable hot and cold mixing for busy kitchen wash-up and prep sinks. It pairs a DR brass body with a Ø35mm ceramic cartridge and a 5-star WELS rating at 6L per minute, and arrives Watermark and WELS approved so it is ready for compliant commercial installation.

Why operators choose the HD4257

• DR brass body — stands up to constant commercial use and resists corrosion far better than plastic-bodied taps.
• Ø35mm ceramic cartridge — gives smooth, drip-free operation and long service life under heavy daily cycling.
• 5-star WELS rating at 6L/min — cuts water use and running costs while meeting Australian efficiency labelling.
• 330mm high spout — clears large pots and deep sinks for easy filling and rinsing.
• Two G1/2 450mm flexible hoses — make connection to standard commercial supply lines quick and flexible.
• Watermark and WELS approved — meets Australian plumbing and water-efficiency requirements out of the box.
• Chrome finish — wipes clean easily and suits any stainless steel kitchen fit-out.

Specifications

Venue suitability

Ideal for cafes, restaurants, commercial kitchens and food-prep areas that need a compliant, high-clearance mixer over a wash-up or prep sink. The 330mm spout suits deep pot sinks and frequent filling. It is less suited to pre-rinse dishwashing stations, where a spring-arm pre-rinse unit with a spray handset is the better tool.

Browse more tapware in our commercial tapware range, or see the full Watermark collection.

Installation & delivery

Connects via two G1/2 450mm flexible hoses to standard commercial hot and cold supply; no power is required and the tap is Watermark and WELS approved for compliant install. Dispatched from our Sydney HQ with partner warehouses in Melbourne, Brisbane, Adelaide and Perth for faster delivery Australia-wide. Every unit is backed by the manufacturer warranty above — see our warranty information page for full terms.

Frequently asked questions

Q: How tall is the HD4257 sink mixer? A: The HD4257 stands 330mm high overall with a 225mm spout reach, giving clearance for large pots and deep sinks.

Q: What is the water efficiency rating? A: It is rated 5-star under WELS with a 6L per minute flow, and it is Watermark and WELS approved for Australian installation.

Q: What is the tap body made from? A: The HD4257 has a DR brass body with a zinc alloy handle and a Ø35mm ceramic cartridge for durable, drip-free use.

Q: How does it connect to the water supply? A: It comes with two G1/2 450mm flexible hoses that connect to standard commercial hot and cold supply lines.

Q: What finish is available? A: The HD4257 is supplied in a chrome finish that wipes clean and matches stainless steel kitchen fit-outs.

Q: What warranty does it come with? A: The HD4257 carries a 2-year parts-only warranty.