.999 pure silver in this fumed out flat cap. Fits most standard size terp slurpers and similar styles. If unsure about fit, measure the inner diameter of your quartz and compare to the cap measurements below.

This cap is larger than most and will fit a Toro XL or Mini XL barrel or similar sized slurper

This cap DOES NOT fit a HE Control Tower.

Stub diameter: 10.26mm (0.4in)
Flat surface dia: 26.6mm

XL Slurper Flat Cap 25mm