18mm Vertical Showerhead Ash Catcher 18mm Vertical Showerhead Ash Catcher Height: 6" Percs: Showerhead Bowl Size: 18mm Joint Size: 18mm 18mm Vertical Showerhead Ash Catcher by MAV glass is a scientific ash catcher that has a showerhead percolator. The vertical design is great for those who have a stemless piece and don't want it to extend to far from the joint. This is a perfect addition to any stemless water pipe and will definitely enhance your smoking experience by creating a smoother feel. Badassglass.com is an online retailer located in Orange County, California. Free & Discreet Shipping on total orders of $50 or more! Items are shipped out within 24 hours. If you have a question about this product you may email us at info@badassglass.com or call toll free at (877)-885-8836. Our knowledgeable staff will be happy to help you and offer their unbiased opinion.