--- product_id: 7752850 title: "Technologies R-0004 pH Indicator Reagent, 2 Ounce" brand: "taylor" price: "€ 15.08" currency: EUR in_stock: true reviews_count: 12 category: "Taylor" url: https://www.desertcart.de/products/7752850-technologies-r-0004-ph-indicator-reagent-2-ounce store_origin: DE region: Germany --- # Compatible with Taylor 2000 Series Comparator 2 oz dropper bottle for extended use Precise pH range 0-14 Technologies R-0004 pH Indicator Reagent, 2 Ounce **Brand:** taylor **Price:** € 15.08 **Availability:** ✅ In Stock ## Summary > ⚡ Stay ahead of the curve with Taylor’s pH precision reagent! ## Quick Answers - **What is this?** Technologies R-0004 pH Indicator Reagent, 2 Ounce by taylor - **How much does it cost?** € 15.08 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.de](https://www.desertcart.de/products/7752850-technologies-r-0004-ph-indicator-reagent-2-ounce) ## Best For - taylor enthusiasts ## Why This Product - Trusted taylor brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Bulk Value Pack:** 2-ounce bottle means fewer refills and more testing power. - • **Trusted by Pros:** Join thousands of pool managers who rely on Taylor’s precision. - • **Lab-Grade Accuracy:** Ensure flawless pH readings with industry-trusted Taylor reagent. - • **Pool & Spa Essential:** Keep your water perfectly balanced for a pristine swim experience. - • **Seamless Compatibility:** Designed specifically for Taylor 2000 Series Comparator kits. ## Overview Taylor Technologies R-0004 is a 2-ounce pH indicator reagent designed for precise water chemistry testing. Compatible with Taylor’s 2000 Series Comparator, it covers the full pH range (0-14) and is ideal for maintaining pools and spas. Trusted by professionals, this reagent offers reliable, cost-effective testing in a convenient dropper bottle. ## Description Taylor R-0004 pH Indicator Reagent. For use with Taylor Test Kits. Size: 2 ounce Review: The best - Taylor. The best water testing available. Easy to use. Review: Great value to buy the 2oz size - No one talks about how expensive pool maintenance is, but buying testing chemicals can be one of those "uncharted" expenses. However, Taylor kits are by far the best and most accurate way to measure pool chemistry, and little bottles (3/4 ounce) can be refilled with these 2 ounce bottles for a considerable savings—assuming you go through it fast enough or can store it without the chemicals degrading. Especially valuable if you maintain multiple pools or have multiple test kits that need to be refreshed. ## Features - For use as directed with Taylor Technologies test kits - R-0004 is used for the pH test - Use with 2000 Series Comparator - 2 ounce dropper bottle ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0030EVB74 | | Best Sellers Rank | #2,485 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #3 in Analytical Reagents | | Brand | TAYLOR | | Brand Name | TAYLOR | | Customer Reviews | 4.6 out of 5 stars 1,010 Reviews | | Included Components | swimming-pool-chemicals-and-supplies | | Item Type Name | Taylor Technologies R-0004 pH Indicator Reagent, 2 Ounce | | Item Weight | 0.15 Pounds | | Manufacturer | TAYLOR | | Material Type | solid | | Model Number | R-0004-C | | Number of Packs | 1 | | Part Number | R-0004-C | | Ph Range | 0-14 | | Recommended Uses For Product | Swimming Pool, Spa | | Sterility Rating | 0-14 | | UPC | 840036000199 | ## Product Details - **Brand:** TAYLOR - **Manufacturer:** TAYLOR - **Ph Range:** 0-14 - **Recommended Uses For Product:** Swimming Pool, Spa - **UPC:** 840036000199 ## Images ![Technologies R-0004 pH Indicator Reagent, 2 Ounce - Image 1](https://m.media-amazon.com/images/I/715OjsrlqML.jpg) ## Questions & Answers **Q: What exactly am i getting here? the model # shows r-0002a with description of 2.75oz while the picture on amazon shows r-0004 with 2oz?** A: Thank you for your question. This item's descriptive data is currently all messed up. I reported it to Amazon several days ago and it remains a disaster. This item is supposed to be a Taylor R-0004 reagent in the 2 oz size (a.k.a. R-0004-C). There is no "2.75 oz" size available and this is NOT a DPD reagent. it is a pH Reagent. **Q: Can this be used to test drinking water?** A: This reagent is for use with a Taylor test kit, such as the K-2006 FAS-DPD chlorine test kit. If you have one of those, or at least the pH comparator tube (the one with the colored windows to compare the color of the test water to), then yes, you can then use this reagent to find the pH of drinking water (if it's between 7.0-8.0). If the test water is out of this range, then no.When used with the Taylor K-2006, you can measure the pH in 0.2 increments (from pH 7.0-8.0). **Q: how many drops per 10 ml ?** A: Hi 5drops per 44ml **Q: Can you tell me the expiration date** A: 04/17 ## Customer Reviews ### ⭐⭐⭐⭐⭐ The best *by Y***R on January 22, 2026* Taylor. The best water testing available. Easy to use. ### ⭐⭐⭐⭐⭐ Great value to buy the 2oz size *by A***T on February 1, 2026* No one talks about how expensive pool maintenance is, but buying testing chemicals can be one of those "uncharted" expenses. However, Taylor kits are by far the best and most accurate way to measure pool chemistry, and little bottles (3/4 ounce) can be refilled with these 2 ounce bottles for a considerable savings—assuming you go through it fast enough or can store it without the chemicals degrading. Especially valuable if you maintain multiple pools or have multiple test kits that need to be refreshed. ### ⭐⭐⭐⭐⭐ Accurate and easy to use *by W***N on July 2, 2026* Husband uses this for water testing in the hot tub. Says it works great and is easy to use. ## Frequently Bought Together - Taylor Technologies R-0004 pH Indicator Reagent, 2 Ounce - Taylor R-0008-C, Total Alkalinity Indicator, 2 Ounce, For Testing Total Alkalinity Levels in Pool and Spas, Dropper Refill for Water Test Kits, Replace Annually | Made in the USA - Taylor Technologies R-0871-C Fas-Dpd Titrating 2 Oz --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.de/products/7752850-technologies-r-0004-ph-indicator-reagent-2-ounce](https://www.desertcart.de/products/7752850-technologies-r-0004-ph-indicator-reagent-2-ounce) --- *Product available on Desertcart Germany* *Store origin: DE* *Last updated: 2026-07-16*