Diamonds are the hardest substance known to man, and DIAMOND™ Seal Technology takes full advantage of this property. Delta's exclusive DIAMOND Seal Technology uses a valve with a tough diamond coating to bring you a faucet built to last up to 5 million uses – plus it keeps water inside the faucet out of contact with potential metal contaminants.

   With its durable components and simple construction, a DIAMOND Seal Technology faucet lasts 10 times longer than the industry standard (ASME 112.18.1, 500,000 cycles). One-piece InnoFlex® waterways with PEX-C tubing make DIAMOND Seal Technology faucets simple to install.

   The handle limit stop on Delta’s DIAMOND™ Valve cartridge makes it easy to limit the range of the handle motion for hot water from full flow to a 50/50 mix. This feature is the smart choice to protect sensitive skin from scalding.