The Higher Standards Heavy Duty Dab Rig from MaryJanes is engineered specifically for the water filtration of concentrates. This durable, medical-grade borosilicate glass rig has been handcrafted for powerful, reliable performance, and features a quartz banger for optimal flavor transfer. With slits on its diffused stem that create fine bubbles for a smooth draw, the rig boasts superior airflow and an airtight seal.