GEM Adjustable Ground Joint Retrofit Flushometers Superior functional features and advanced water handling characteristics-all in a superior valve design. That's what you'll find in Sloan Valve's World Class Flushometer, the GEM·2 ®. GEM·2 Flushometers deliver "Sloan Excellence"- superior performance that makes the plumbing in a building's restrooms more efficient and affordable.Gem·2 Water Closet Flushometers are available in a 1.6-gallon (6-liter) low consumption flush. Urinal Flushometers are available with a 1-gallon (3.8 liter) flush. The Gem·2 Flushometer is designed to accurately meter water delivery from 15 to 100 psi (100-690 kPa) (1 to 6.5 BAR).Specifications:Quiet, Exposed, Piston Type, Chrome Plated Closet Flushometer with the following features:. Fixed Volume Piston with Filtered O-Ring By-Pass. ADA Compliant Metal Oscillating Handle. 1" I.P.S. Screwdriver Bak-Chek. Angle Stop. Vandal Resistant Stop Cap. Adjustable Tailpiece. Vacuum Breaker Flush Connection. High Copper, Low Zinc Brass Castings for Dezincification Resistance. Non-Hold-Open Handle and No External Volume Adjustment to Ensure Water Conservation. Handle Packing, Stop Seat and Vacuum Breaker to be Molded from PERMEX Rubber Compound for Chloramine Resistance