The High Performance Water Bottle Cap is modeled after the Porsche  991 / 992 / 997 / 976 / 918 / 718  center lock wheel nut found on most GT cars. But "Why?" you ask. It. Just. Looks. Mega. Imagine showing up for Cars & Coffee and strutting across that Starbucks parking lot with this bad boy dangling from your wrist as mouths drop and women hide their children. Pure legend status.

Machined from a block of 6061 aluminum so it feels just like a real center lock wheel nut. Then it gets a nice hard anodized coating just like a real center lock wheel nut and finally the markings are lasered on. We put a loop in the top so you can attach a lanyard for easy toting around. Included is a micro carbon fiber and nylon composite center cap but you can easily pop it out and use a real center cap from your GT3 RS. It fits all wide mouth Hydro Flask bottles (the ones with about a 2" opening).

Care and cleaning:

For care and cleaning, please watch the last video in the left column.

Frequently Asked Questions:

What water bottles does this fit?
We designed this to fit the wide mouth (about 2" opening) Hydro Flask. This is the most popular size Hydro Flask that most people have. Also, so far in random testing, the cap also fits ThermoFlask and Takeya bottles (with 2" openings).
What other center caps fit this water bottle cap?
You will need a modern center cap that usually is advertised as a 2" or 50mm cap. A lot of times these center caps are advertised as for a GT3 or GT3 RS center cap for 991 or 992 Porsche 911s. Here's some confirmed center caps that fit: 99136120710 (chrome), 9P1601349BJE1 (black).
Where can I get a lanyard for my water bottle cap?
If you like the orange lanyard in our pictures, you can find it and many others on Amazon.
If you like the carabiner in our pictures, you can find it and many others on Amazon. We recommend getting one on the larger side as smaller ones might hurt your hand after carrying the water bottle for long periods of time: 

PORSCHE, 718, 911, CAYENNE, CAYMAN, MACAN and TAYCAN are registered trademarks of Dr.-Ing. h.c. F. Porsche AG, Inc. Nine Volt, Inc. has no affiliation with Dr.-Ing. h.c. F. Porsche AG, Inc. Throughout this website, the terms PORSCHE, 718, 911, CAYENNE, CAYMAN, MACAN and TAYCAN are used strictly for identification purposes only. It is not implied that any part listed is a product of, or approved by, Dr.-Ing. h.c. F. Porsche AG, Inc.