--- product_id: 9534281 title: "PH Test Indicator, 8-Ounce" brand: "general hydroponics" price: "€ 29.80" currency: EUR in_stock: false reviews_count: 13 category: "General Hydroponics" url: https://www.desertcart.pt/products/9534281-ph-test-indicator-8-ounce store_origin: PT region: Portugal --- # Long-lasting 8 oz bottle Precise liquid pH indicator Simple 3 drops per 5mL dosing PH Test Indicator, 8-Ounce **Brand:** general hydroponics **Price:** € 29.80 **Availability:** ❌ Out of Stock ## Summary > 💧 Stay in the pH zone—precision that won’t quit! ## Quick Answers - **What is this?** PH Test Indicator, 8-Ounce by general hydroponics - **How much does it cost?** € 29.80 with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.pt](https://www.desertcart.pt/products/9534281-ph-test-indicator-8-ounce) ## Best For - general hydroponics enthusiasts ## Why This Product - Trusted general hydroponics brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Trusted by Pros:** 4.8-star rating from over 1,400 users who swear by its consistency and simplicity. - • **Durable & Dependable:** 8-ounce bottle designed to last through countless tests, minimizing waste and cost. - • **User-Friendly Design:** Easy-to-use liquid indicator that fits seamlessly into your hydroponic routine. - • **Effortless pH Testing:** Just add 3 drops to 5mL nutrient solution for instant color readout—no calibration needed. - • **Cost-Effective Accuracy:** Reliable pH results without the high price or fragility of digital meters. ## Overview The General Hydroponics PH Test Indicator is an 8-ounce liquid solution that provides accurate, easy-to-read pH measurements for hydroponic nutrient solutions. Simply add 3 drops per 5mL of nutrient solution to observe a color change indicating pH level. It offers a cost-effective, durable alternative to expensive digital meters, with a strong reputation for reliability and ease of use among over 1,400 satisfied customers. ## Description Fill a test-tube halfway with nutrient, add a few drops of pH Test Indicator, and observe the coloration of the liquid in the test vial. Use 3 drops per 5mL of solution. Review: Accurate ph meters are expensive and break. This is a better option - Accurate, affordable, lasts a long time, and so easy to use. I’m tired of expensive ph meters breaking on me. I put this in an oral syringe so I don’t have to keep opening the bottle every use. You only need a few drops. Review: It works - Tried and true. Ol faithful. Never needs to be calibrated. Highly recommended ## Features - Fill a test-tube halfway with nutrient - Add a few drops of pH Test Indicator - Observe the coloration of the liquid in the test vial. Use 3 drops per 5mL of solution ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B003Y3F34I | | Customer Reviews | 4.8 4.8 out of 5 stars (1,429) | | Is Discontinued By Manufacturer | No | | Item Weight | 9.9 ounces | | Item model number | GH1516 | | Manufacturer | General Hydroponics | | Product Dimensions | 1.2 x 6 x 1.7 inches | ## Product Details - **Brand:** General Hydroponics - **Global Trade Identification Number:** 00793094015165 - **Manufacturer:** General Hydroponics - **Ph Range:** 0-14 - **UPC:** 793094015165 ## Images ![PH Test Indicator, 8-Ounce - Image 1](https://m.media-amazon.com/images/I/81Hkq0GpbDL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Accurate ph meters are expensive and break. This is a better option *by S***S on August 16, 2025* Accurate, affordable, lasts a long time, and so easy to use. I’m tired of expensive ph meters breaking on me. I put this in an oral syringe so I don’t have to keep opening the bottle every use. You only need a few drops. ### ⭐⭐⭐⭐⭐ It works *by L***7 on February 12, 2025* Tried and true. Ol faithful. Never needs to be calibrated. Highly recommended ### ⭐⭐⭐⭐⭐ If you don't have a test vial, make certain you order the Kit with the vial first;) *by A***R on December 30, 2020* Product is great and works as it should. My only problem is user error, no fault of the company's. I neglected to order the kit with the test vial. Fortunately, I have test vials for my aquariums, although their dimensions are slightly different from those in the photos of the test kits. If anyone happens to know, off-hand, what size the test vials are, I would greatly appreciate the info, for accuracy's sake. I'd just go ahead and order the kit, but this took a few weeks in shipping(no fault to the postal service; it's just the times we're living in right now. Thanks for a great product that is far more reliable than my constantly-needs-calibrated digital ph meter! Namaste ## Frequently Bought Together - General Hydroponics GH1516 Indicator Fertilizer, 8-Ounce, Purple ph-test-strips, natural - General Hydroponics pH Down Liquid Premium Buffering For pH Stability, Quart - General Hydroponics CALiMAGic 1-0-0, Concentrated Blend of Calcium & Magnesium, Secondary Nutrient Deficiencies Helps Prevent Blossom End Rot & Tip Burn, Clean, Soluble, 1-Quart --- ## 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.pt/products/9534281-ph-test-indicator-8-ounce](https://www.desertcart.pt/products/9534281-ph-test-indicator-8-ounce) --- *Product available on Desertcart Portugal* *Store origin: PT* *Last updated: 2026-04-24*