gravlabs dab rigs

Grav Labs Stephen Pierce Glassgrav-labs

At 6 inches tall, this Grav Labs ‘Stemless Inset Showerhead Perc Vapor Bubbler’ comes with a 14.5mm male joint and is hand blown in Austin, Texas.

The major highlights of this concentrate rig would be the 90-degree joints, scientific glass, reinforced stemless design, flared mouthpiece and umbrella percolators with 6 slits.

Stephen Pierce Glass by Grav Labs


Price: $50 - $100
Find Here: BillowbyDank StopWickie PipesSmoke Cartel

This an Stephen Pierce Glass (SPG) Bubbler from Grav Labs. This is an affordable, sleek and simple dab rig bubbler recommended for those who are just starting out with dabbing. This dab rig features the well known umbrella percolator designed by Steven Pierce Glass. A very unique piece that includes matching angle cut dome and quartz nail.

  • Size
  • Flavor
  • Glass Thickness
  • Weight

Grav Labs Stephen Pierce Glass Review

The Grav Labs SPG (Stephen Pierce Glass) dab rig is one of a kind design and is the heart and belly of Grav Labs. At such an affordable price, everyone who is a serious smoker should have one. Those of you who are interested in your first dab rig investment should start with this or similar dab rigs.

This oil rig is constructed with borosilicate glass and is built with reinforced joints. This ensures your investment will stay safe for some time. With the glass umbrella percolator, you will receive the optimal diffusion resulting in a smooth hit. Only 6 inches tall this dab rig can easily be stored without taking up much space. The thick borosilicate glass is durable and ensures a long-lasting masterpiece without the usual threats of cracking and deformation under the extreme temperatures. The bent neck keeps the water from splashing into your mouth and the flared mouthpiece is very comfortable to use.

gravlabs dab rigsWhen looking for a quality dab rig it is best to look for certain aspects as this is what you can use to determine whether or not the dab rig is right for you. You want to be on the lookout for smaller dab rigs. That’s because they tend to retain the flavor better. You also want to keep an eye out for smaller mouthpieces as this make a big difference on the harshness of the taste. A bong is usually created with a larger mouth opening because of the large amount of air needed when ripping a bong, but when looking at dab rigs to purchase it is best you pick one with a smaller and comfortable mouthpiece. Lastly, you want to look out for dab rigs that have too many percolators. Your dab rig should have only one percolator for optimal flavors.

The SPG (Stephen Pierce Glass) dab rig by Grav Labs is made with the best optimal flavor and the smoothest hit in mind. The small design allows vapor to hit you instantly with minimum effort, while the glass umbrella 6 slit percolator cools the vapor to optimal temperatures. The SPG design is specifically created to give you that satisfying super rich and thick flavor. This specially designed dab rig is lightweight making it easy to carry and transport.

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Grav Labs History

Grav labs were founded in 2004 in Austin Texas. They have been manufacturing outstanding glass dab rigs and other paraphernalia and are well known for their affordable pieces. They have been an industry leader in the designs and creation of dab rigs and other glassworks. Many people who find Roor’s prices to be a bit steep, go to Grav Labs because they provided functional and affordable glasswork alternative.

grav labs historyThe Grav Labs team is composed of highly skilled members. Since the start of the company, the team has produced many different stunning selections of glass and Grav
Labs have since been well respected.

Their famous umbrella-perk rigs are influenced by Stephan Peirce designs and have been named after him. DankStop is proud to be an authorized retailer, offering a large selection of Grav products including their bubblers, dab rigs, hand pipes, recyclers, and more. Grav Labs has several product lines such as Helix, Stax, Upline, Graviton, Nano, Tasters and of course the premium Grav Gold Series. They are proud to offer a diverse line-up of in style, functional and affordable glass.


The affordable prices, great designs and air flow is why this is our top most recommended concentrate rig. If you are new to dab rigs, please consider looking for a similar product for your first rig. Check out our other top dab rigs reviews.