{"product_id":"suttner-st-164-dual-soap-downstream-injector","title":"Suttner ST-164 Dual Soap Downstream Injector with 3\/8\" Quick Connects","description":"\u003ch2\u003eSuttner ST-164 Dual Soap Downstream Injector\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eSuttner ST-164\u003c\/strong\u003e is the professional stainless steel \u003cstrong\u003edual chemical downstream injector\u003c\/strong\u003e we build into our \u003ca href=\"\/products\/dual-chemical-injector-foam-wash-system\"\u003eDual Soap Wash System\u003c\/a\u003e, now sold on its own. It installs between your pressure washer and your gun and draws from \u003cstrong\u003etwo different soaps or chemicals\u003c\/strong\u003e. Flip one lever to switch from Step 1 to Step 2, with no moving pickup tubes, no pre-mixing, and no chemical running through your pump.\u003c\/p\u003e\n\u003cp\u003eIt comes as pictured, ready to install with \u003cstrong\u003e3\/8\" quick connects\u003c\/strong\u003e, a \u003cstrong\u003ewall mounting bracket\u003c\/strong\u003e, and \u003cstrong\u003etwo braided chemical inlet lines with barbs\u003c\/strong\u003e. It's built for two-step touchless truck washing, fleet yards, detailers, and wash bays.\u003c\/p\u003e\n\n\u003ch2\u003eWhy Choose the ST-164 from Image Wash?\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTwo chemicals, one lever:\u003c\/strong\u003e run a two-step touchless soap like \u003ca href=\"\/products\/touchless-1-2\"\u003eTouchless 1 \u0026amp; 2\u003c\/a\u003e, or keep a soap and a wax or protectant connected at the same time\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eKeeps chemicals out of your pump:\u003c\/strong\u003e downstream injection adds soap after the pump, which helps protect seals and valves\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReady to mount and connect:\u003c\/strong\u003e 3\/8\" quick connects, wall bracket, and chemical inlet lines come installed\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStainless steel construction:\u003c\/strong\u003e rated 1,000 to 5,000 PSI by Suttner and built for daily commercial use\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSetup help from people who use it:\u003c\/strong\u003e it's the same injector in every Image dual soap system, and our team will help you dial in your dilution\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eModel\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSuttner ST-164 dual chemical downstream injector\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eChemicals\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eTwo, selected with an integrated lever\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWater connections\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3\/8\" quick connects, installed\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eChemical inlets\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eTwo braided chemical lines with hose barbs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMetering\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eReplaceable injector nozzle; size must match your PSI and GPM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOperating pressure\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1,000 to 5,000 PSI (manufacturer rating)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFlow range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1 to 18 GPM (manufacturer rating); 2.5 GPM minimum recommended\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaximum temperature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e212°F (100°C); best foam at 130°F or less\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eStainless steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMounting\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eWall mounting bracket, included\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSKU\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSS-IA-2S\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cdiv style=\"text-align: start;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0015\/4196\/3828\/files\/ST-164_Injector_Graphic-3_600x600.webp?v=1661353572\" alt=\"Suttner ST-164 dual soap downstream injector diagram\"\u003e\u003c\/div\u003e\n\n\u003ch2\u003eHow a Dual Downstream Injector Works\u003c\/h2\u003e\n\u003cp\u003eA downstream injector uses the Venturi effect. When your lance or nozzle is in \u003cstrong\u003elow-pressure mode\u003c\/strong\u003e (a foam lance, the low side of a hi-lo wand, or a soap nozzle), water speeds up through the injector and creates suction at the chemical inlet. The ST-164 has two chemical inlets, and its lever chooses which one draws. Soap is pulled through your pickup tube, metered, and mixed into the water stream. Switch to a \u003cstrong\u003ehigh-pressure rinse nozzle\u003c\/strong\u003e and the suction stops, so you rinse with clean water.\u003c\/p\u003e\n\u003cp\u003eWant the full breakdown, including how to run two-step touchless soap? Read our \u003ca href=\"\/blogs\/news\/downstream-chemical-injectors-the-complete-guide\"\u003eDownstream Chemical Injectors: The Complete Guide\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch2\u003eHow to Install and Use\u003c\/h2\u003e\n\u003col\u003e\n\u003cli\u003eMount the injector to a wall with the included bracket, near your pressure washer and soap containers.\u003c\/li\u003e\n\u003cli\u003eTurn off the pressure washer and release pressure from the gun.\u003c\/li\u003e\n\u003cli\u003eConnect your pressure washer's outlet hose to the injector inlet and your wash hose to the injector outlet using the 3\/8\" quick connects. Follow the flow arrow.\u003c\/li\u003e\n\u003cli\u003ePush pickup tubing onto both chemical line barbs and place the strainer ends in your Step 1 and Step 2 containers.\u003c\/li\u003e\n\u003cli\u003eSet the lever to Step 1, put your lance in low pressure, and apply soap from the bottom up.\u003c\/li\u003e\n\u003cli\u003eFlip the lever to Step 2 and apply over the first coat.\u003c\/li\u003e\n\u003cli\u003eSwitch the lance to high pressure and rinse from the top down.\u003c\/li\u003e\n\u003cli\u003eAfter washing, draw clean water through both pickup tubes to flush the injector.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eWhat is the Suttner ST-164?\u003c\/h3\u003e\n\u003cp\u003eThe ST-164 is a stainless steel dual chemical downstream injector from Suttner. It draws one of two soaps or chemicals into the water line after your pressure washer's pump, and an integrated lever selects which one.\u003c\/p\u003e\n\u003ch3\u003eIs this the same injector used in the Image Dual Soap Wash System?\u003c\/h3\u003e\n\u003cp\u003eYes. It's the injector from our \u003ca href=\"\/products\/dual-chemical-injector-foam-wash-system\"\u003eDual Soap Wash System\u003c\/a\u003e and \u003ca href=\"\/products\/dual-soap-injector-system-hi-lo-wash-lance\"\u003eDual Soap Injector System with Hi-Lo Wash Lance\u003c\/a\u003e, sold by itself for customers who already have a lance, hoses, and draw tubes.\u003c\/p\u003e\n\u003ch3\u003eWhat's included?\u003c\/h3\u003e\n\u003cp\u003eThe ST-164 injector as pictured: 3\/8\" quick connects installed, a wall mounting bracket, and two braided chemical inlet lines with barbs. A lance, pickup tubing, draw tubes, and metering tips are not included; those come in our complete soap systems.\u003c\/p\u003e\n\u003ch3\u003eDoes the nozzle size need to match my pressure washer?\u003c\/h3\u003e\n\u003cp\u003eYes. The injector nozzle has to match your machine's flow and pressure to draw soap correctly. Call us at 616-777-7175 with your PSI and GPM and we'll confirm the right size.\u003c\/p\u003e\n\u003ch3\u003eCan I run Touchless 1 \u0026amp; 2 through it?\u003c\/h3\u003e\n\u003cp\u003eYes. That's what it's built for. Connect Step 1 to one inlet and Step 2 to the other, and switch with the lever. You can pre-mix each soap 50\/50 or draw the concentrate with metering tips to reach the right end dilution.\u003c\/p\u003e\n\u003ch3\u003eWhy isn't my injector drawing soap?\u003c\/h3\u003e\n\u003cp\u003eThe most common causes are: your lance is in high-pressure mode or your soap nozzle opening is too small; the pickup tube or strainer is clogged; there's an air leak where the tube meets the barb; the soap is too thick; or the pickup tube is too long. Check each of these, and flush the injector with clean water.\u003c\/p\u003e\n\u003ch3\u003eDo I need the dual injector, or will a single injector work?\u003c\/h3\u003e\n\u003cp\u003eA single injector like the \u003ca href=\"\/products\/suttner-st-160-single-soap-downstream-injector\"\u003eSuttner ST-160\u003c\/a\u003e works if you're fine moving the pickup tube between containers. The ST-164 saves that step and keeps both soaps connected all the time.\u003c\/p\u003e\n\n\u003ch2\u003eComplete Your Setup\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/dual-chemical-injector-foam-wash-system\"\u003eDual Soap Wash System\u003c\/a\u003e with the Foaminator foam lance\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/dual-soap-injector-system-hi-lo-wash-lance\"\u003eDual Soap Injector System with Hi-Lo Wash Lance\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/soap-system-premium-single-barrel-hi-lo\"\u003ePremium Single Barrel Hi-Lo Wand\u003c\/a\u003e for soap and rinse from one lance\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/touchless-1-2\"\u003eTouchless 1 \u0026amp; 2\u003c\/a\u003e truck wash soap\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cem\u003eImage Wash Products (Formerly Reflections Wash Products)\u003c\/em\u003e\u003c\/div\u003e","brand":"Image Wash Products","offers":[{"title":"Default Title","offer_id":67596741443814,"sku":"SS-IA-2S","price":1230.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0015\/4196\/3828\/files\/suttner-st-164-dual-soap-downstream-injector.webp?v=1790711685","url":"https:\/\/washproduct.com\/products\/suttner-st-164-dual-soap-downstream-injector","provider":"Image Wash Products","version":"1.0","type":"link"}