The Higher Standards Heavy Duty Rig is engineered specifically for the water filtration of concentrates. This durable, medical-grade borosilicate glass rig has been handcrafted for powerful, reliable performance, featuring a quartz banger for optimal flavor transfer. With slits on its diffused stem that create fine bubbles for a smooth draw, the Heavy Duty Rig boasts superior airflow and an airtight seal. Simply put, this rig is built to chug. The Heavy Duty Rig stands at seven inches tall and can be cleaned to crystal clear perfection with Higher Standards ISO Pure and Salt Rox, along with our other care and maintenance products. Each Higher Standards Heavy Duty Rig is sold in a reusable collector’s case for safe storage and transport and includes a concentrate container and set of dab tools.