Approvals & Certifications

CRESTIAL products are environmentally friendly. They are backed by people who are committed to performance and excellence. Water is a most precious resource and CRESTIAL products perform well, even while they conserve water needed in everyday life. CRESTIAL faucets and showers are designed with focus on water conservation and excel in water saving initiatives such as Korea Eco Label and Singapore WELS (Water Efficiency Labelling Scheme) issued by Singapore national water board - PUB.  This scheme registers and certifies the water efficiency of products in compliance to water flow ratings / guidelines in accordance to terms and conditions set by PUB.
For more information, please visit website

Singapore WELS


Type of Approvals Obtained:
CRESTIAL products are tested/certified by TÜV-SÜD-PSB lab and conform to the following standards

BS EN 817 – Mechanical Characteristics
CRESTIAL products embody the virtue of performance. Pass and surpass torsion, strength, leak tightness and endurance tests.

BS EN 248 – Corrosion Resistance Test
CRESTIAL SUNDANCE CHROME is brilliant and durable. Pass 200 hours of NSS test with no sign of degradation.

BS 6920 – Effect On Water Test
AS/NZS 4020 – Metal Toxicity Test
CRESTIAL uses quality material and components. Parts in contact with water conform to the World Health Organization guidelines for drinking water quality.

AS/NZS 3662 – Shower Performance (Flow Rate Requirements for Water Efficiency Labelling)
BS EN 817 – Hydraulic Characteristics (Flow Rate Requirements for Water Efficiency Labelling)
CRESTIAL products are ENVIRON PRO. Achieved by meticulous design and application of constant flow regulation technology employed in most mixers and showers.