Pulsar U-Neck Quartz Banger has a rating of 5.0 stars based on 4 reviews.
The U-Neck Quartz Banger is a pure quartz 90 degree nail w/ a thick bottom quartz bucket for excellent heat retention and a groundless joint for a more solid connection. The bucket opening is beveled to allow for a tight seal with your 20mm (or larger) carb cap. The thick quartz bottom retains heat for much longer than regular quartz. Inner bucket diameter measures 19mm, OD measures 25mm.