The lightweight media valve is for use with baking soda, fine mesh alumina silicate, kieserite, glass bead, and agricultural media. This manually-operated abrasive metering valve has a 1/2" NPT connection. It is for use with Clemco Pool Pal and Aerolyte Soft King Blast Machines. Lightweight, non-aggressive media can effectively clean pool tile; strip paint from cars and trucks; clean grease and dirt from industrial valves; and remove grime from stainless steel tanks and food processing equipment.