{"product_id":"phenol-red-4-ph-indicator-solution-2-oz","title":"Taylor Phenol Red #4 pH Indicator Solution, 2 oz","description":"\u003cp\u003eTaylor #4 is the phenol red pH indicator solution, supplied in a 2 oz dropper bottle. It is listed as R-0004-C-144 and referred to as R-0004, and it is the reagent refill for pH testing in Taylor pool test kits.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat it does\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003ePhenol red is an indicator dye. Add the specified number of drops to a water sample and it develops a color that you read against the comparator block in your kit. The color tells you pH, which is the reading that governs almost everything else in the pool: how well chlorine works, whether the water scales or etches, and whether swimmers come out with stinging eyes.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eReplace it every year\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eReagents age. Light, heat and time all shift the chemistry inside the bottle, and old solution still returns a color, just not the right one. A reading you trust and should not is worse than no reading, so Taylor recommends refreshing reagents annually.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat this listing is\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe 2 oz refill bottle only, for a Taylor kit you already own.\u003c\/p\u003e","brand":"Taylor Technologies","offers":[{"title":"Default Title","offer_id":48626594152660,"sku":"TAY-47-5003","price":13.48,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/9568\/2516\/files\/default_3db28cce-2b36-48e6-8733-5ca5e62f3cdd.jpg?v=1788712845","url":"https:\/\/www.activepoolsupply.com\/products\/phenol-red-4-ph-indicator-solution-2-oz","provider":"Active Pool Supply","version":"1.0","type":"link"}