Find OEM Dema 167 SOAP PROPORTIONER replacement part at Parts Town with fast same day 167. Parts Town Part #:. DEM167. Units: Each. Fits Models:.View and Download DEMA 167 installation instructions online. PROPORTIONER. 167 control unit pdf manual download. Also for: 167t. DEMA PROPORTIONER. MODEL 167 & 167T. INSTALLATION INSTRUCTIONS Dema part 34-22 between faucet and proportioner. See Fig. 1 for supply tubing attachment. Part #, DM-167. Description. Use a slide valve actuator to determine if a chemical solution is dispensed.Includes FV, Supply tubing, Metering Tips & Ceramic Use color coded metering tips to determine dilution ratio Model 167 and 167T AG models include DEMA's Ultra Gap air gap proportioner. WARNING: USE CARE WHEN DEMA PROPORTIONER. MODEL 167 & 167T. INSTALLATION INSTRUCTIONS. 1.PARTS. A.Proportioner Assembly. B.Supply tubing with foot valve & ceramic weight.