GRAV 6" Umbrella Perc Rig Color:Black Introducing the first microdosing device

Introducing the first microdosing device for flower

some are moist

Limited quantity and availability

The packing tools helps to ensure a tightly packed cone for the best slow burning

360° Swivel Action Whip

GRAV 6" Umbrella Perc Rig Color:Black Introducing the first microdosing deviceThe SPG designed umbrella perc rig from Grav (formerly Grav Labs) is a uniquely designed rig that's loaded with features. The Umbrella Perc rig stands 6" tall and features a flared foot base, a six cut fused and fixed umbrella perc downstem, a bent neck flute, and includes a 14mm domeless quartz nail. Made on 45mm thick tubing and available in clear or with black accents. Six Cut Fused, Fixed Umbrella Perc Downstem Bent Neck Flute Mouthpiece Grav