{"product_id":"rola-chem-digital-orp-ph-controller-38gpd-12gpd-554500","title":"Rola-Chem 554500 Digital pH\/ORP Controller System with Two 38 GPD Pumps","description":"\u003ch2\u003eRola-Chem 554500 Ready-to-Mount pH\/ORP System\u003c\/h2\u003e\u003cp\u003eThe 554500 combines a digital controller, monitoring components and two chemical-feed pumps on a mounting board. It is intended for a coordinated pH and sanitizer-feed installation with fewer separately sourced control components.\u003c\/p\u003e\u003ch3\u003eWhat is included\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eRC554XP digital pH\/ORP controller.\u003c\/li\u003e\n\u003cli\u003eTwo RC305 Pro Series 300 peristaltic pumps, each rated at 38 gallons per day.\u003c\/li\u003e\n\u003cli\u003epH and ORP probes.\u003c\/li\u003e\n\u003cli\u003eFlow cell with flow switch, valves and fittings.\u003c\/li\u003e\n\u003cli\u003eBlack sampling tubing, clear tubing, in-line strainer and polypropylene mounting board.\u003c\/li\u003e\n\u003cli\u003eManufacturer part number: 554500.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSystem selection\u003c\/h3\u003e\u003cp\u003eThis model uses two 38 GPD pumps. Pump rating describes maximum delivery capacity, not a recommended daily chemical dose. Actual feed settings must match pool demand, chemical concentration and the installation.\u003c\/p\u003e\u003ch3\u003eNeeded separately\u003c\/h3\u003e\u003cp\u003eProvide compatible chemical supply tanks, treatment chemicals, electrical service and suitable wall space. Have your installer confirm feed connections, sample-water flow and the required interlocks before commissioning.\u003c\/p\u003e\u003ch3\u003eOperation and maintenance\u003c\/h3\u003e\u003cp\u003epH and ORP feedback help the controller manage feeding around the selected setpoints. ORP indicates sanitizer activity rather than directly measuring free chlorine in ppm. Continue manual water testing, keep the probes clean and inspect pump tubes and chemical lines according to the manufacturer's schedule.\u003c\/p\u003e\u003cp\u003e\u003ca href=\"https:\/\/rola-chem.com\/product\/ready-to-mount-digital-ph-dual-orp-fac-ppm-controller-system-3\/\" target=\"_blank\" rel=\"noopener\"\u003eManufacturer specifications and product documentation\u003c\/a\u003e\u003c\/p\u003e","brand":"Rola-Chem","offers":[{"title":"Default Title","offer_id":44941360824362,"sku":"ROL-451-4500","price":2539.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/6875\/8570\/files\/mikan-rol-451-4500-original.jpg?v=1791317619","url":"https:\/\/mikanpool.com\/products\/rola-chem-digital-orp-ph-controller-38gpd-12gpd-554500","provider":"MIKAN POOL SUPPLIES","version":"1.0","type":"link"}