Send a part number, a photo, or a whole BOM — we supply it and stand behind it. Worldwide shipping to 80+ countries.

INSTA-TEST Test Strips: Free Chlorine/Hardness/Nitrate/Nitrite/pH/Total Chlorine, 25 Tests - Multi-Parameter Water Testing Strips
INSTA-TESTMulti-Parameter Water Testing Strips

INSTA-TEST Test Strips: Free Chlorine/Hardness/Nitrate/Nitrite/pH/Total Chlorine, 25 Tests

The INSTA-TEST Test Strips: Free (SKU 2933-G, MPN 2933-G) are multi-parameter water testing strips from INSTA-TEST. Each strip tests for Free Chlorine, Hardness, Nitrate, Nitrite, pH, and Total Chlorine, with a pH…

SKU 3G-OTH-417834

Also listed as: 2933G · 2933 G

Brand
INSTA-TEST
Item
Test Strips: Free Chlorine/Hardness/Nitrate/Nitrite/pH/Total Chlorine, 25 Tests
Category
Multi-Parameter Water Testing Strips
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineerMessage via Telegram
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Specifications

INSTA-TEST
Manufacturer Part Number
2933-G
Type
Chlorine/Hardness/Nitrate/Nitrite/pH/Total Chlorine, Strip
Tests
25

Technical Documents

No technical documents available for this product.
Request documentation
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

INSTA-TEST Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The INSTA-TEST Test Strips: Free (SKU 2933-G, MPN 2933-G) are multi-parameter water testing strips from INSTA-TEST. Each strip tests for Free Chlorine, Hardness, Nitrate, Nitrite, pH, and Total Chlorine, with a pH range of 4 to 10 pH. The product includes 25 tests per package.

Frequently Asked Questions

What is the INSTA-TEST 2933-G test strip used for?

The INSTA-TEST 2933-G multi-parameter strip tests Free Chlorine, Hardness, Nitrate, Nitrite, pH, and Total Chlorine in water. It is used by plant engineers and maintenance techs for quick water-quality checks in cooling towers, boilers, and process water systems.

What are the specifications of the INSTA-TEST 2933-G test strips?

Each INSTA-TEST 2933-G strip tests for Free Chlorine, Hardness, Nitrate, Nitrite, pH (range 4 to 10 pH), and Total Chlorine. The package contains 25 tests. The manufacturer part number is 2933-G, and the brand is INSTA-TEST.

Where to buy INSTA-TEST 2933-G test strips worldwide?

3G Electric supplies the INSTA-TEST 2933-G test strips worldwide. As a global industrial solutions provider, we handle full logistics and customs clearance to deliver these multi-parameter water testing strips to your facility, wherever it is located.

How to use INSTA-TEST 2933-G test strips for water testing?

To use INSTA-TEST 2933-G strips, dip the strip into the water sample for the time specified on the bottle, then remove and shake off excess water. Compare the color pads to the chart on the bottle within the stated wait time. Record results for Free Chlorine, Hardness, Nitrate, Nitrite, pH, and Total Chlorine.

Used in

Common applications for INSTA-TEST
Cooling tower water treatment — INSTA-TEST multi-parameter strips (SKU 2933-G) for monitoring pH, chlorine, hardness, and nitrate levels.
Boiler feedwater quality control — INSTA-TEST strips (SKU 3038-G) for alkalinity, pH, and total hardness checks.
Wastewater effluent monitoring — INSTA-TEST nitrate/nitrite strips (SKU 2996) for assessing nitrogen compounds.
Industrial process water disinfection — INSTA-TEST QAC strips (SKU 2934) for verifying quaternary ammonium compound concentrations.
Potable water residual chlorine testing — INSTA-TEST free/total chlorine strips (SKU 3027-G) for rapid field checks.
Metal finishing bath analysis — INSTA-TEST copper/iron strips (SKU 2994) for tracking metal ion levels in plating solutions.

INSTA-TEST Products

3G Electric supplies INSTA-TEST multi-parameter water testing strips. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

You might also need

Burners & Combustion Pumps & Compressors Spare Parts All Products

Compatible alternatives & equivalents

Cross-referenced by specification & description
INSTA-TEST Test Strips: QAC, 0 to 800 ppm High Range/0 to 80 ppm QAC Low Range, Strip, 50 Tests, QAC (MPN 2934)
INSTA-TEST
INSTA-TEST Test Strips: QAC, 0 to 800 ppm High Range/0 to 80 ppm QAC Low Range, Strip, 50 Tests, QAC (MPN 2934)
INDUSTRIAL TEST SYSTEMS Test Strips: Nitrite/pH/Total Alkalinity/Total Hardness, 25 Tests, Strip (MPN 481345)
INDUSTRIAL TEST SYSTEMS
INDUSTRIAL TEST SYSTEMS Test Strips: Nitrite/pH/Total Alkalinity/Total Hardness, 25 Tests, Strip (MPN 481345)
INDUSTRIAL TEST SYSTEMS Test Strips: 0 to 5 ppm Free Chlorine/0 to 5 ppm Total Chlorine, 30 Tests (MPN 480655)
INDUSTRIAL TEST SYSTEMS
INDUSTRIAL TEST SYSTEMS Test Strips: 0 to 5 ppm Free Chlorine/0 to 5 ppm Total Chlorine, 30 Tests (MPN 480655)
INDUSTRIAL TEST SYSTEMS Test Strips: Iron/Nitrate/Nitrite/pH/Total Alkalinity/Total Hardness (MPN 481302)
INDUSTRIAL TEST SYSTEMS
INDUSTRIAL TEST SYSTEMS Test Strips: Iron/Nitrate/Nitrite/pH/Total Alkalinity/Total Hardness (MPN 481302)
INDUSTRIAL TEST SYSTEMS Test Strips: 50 Tests, Strip (MPN 480015)
INDUSTRIAL TEST SYSTEMS
INDUSTRIAL TEST SYSTEMS Test Strips: 50 Tests, Strip (MPN 480015)
INDUSTRIAL TEST SYSTEMS Test Strips: Chlorine, 0 to 80 ppm Free Chlorine, Strip, 30 Tests (MPN 481130)
INDUSTRIAL TEST SYSTEMS
INDUSTRIAL TEST SYSTEMS Test Strips: Chlorine, 0 to 80 ppm Free Chlorine, Strip, 30 Tests (MPN 481130)

More from INSTA-TEST

View all INSTA-TEST parts
INSTA-TEST Test Strips: Iron/pH/Total Chlorine/Total Hardness, 50 Tests, Strip, 4 in Overall Lg (MPN 2992)
INSTA-TEST
INSTA-TEST Test Strips: Iron/pH/Total Chlorine/Total Hardness, 50 Tests, Strip, 4 in Overall Lg (MPN 2992)
INSTA-TEST Test Strips: 0 to 3 ppm Copper/0 to 5 ppm Iron, Copper/Iron, 25 Tests, Strip (MPN 2994)
INSTA-TEST
INSTA-TEST Test Strips: 0 to 3 ppm Copper/0 to 5 ppm Iron, Copper/Iron, 25 Tests, Strip (MPN 2994)
INSTA-TEST Test Strips: Alkalinity/Nitrate/Nitrite/pH/Total Hardness, 25 Tests, Strip (MPN 3038-G)
INSTA-TEST
INSTA-TEST Test Strips: Alkalinity/Nitrate/Nitrite/pH/Total Hardness, 25 Tests, Strip (MPN 3038-G)
INSTA-TEST Test Strips: 0 to 50 ppm Total Chlorine/4 to 10 pH, pH/Total Chlorine, 25 Tests, Strip (MPN 2987-G)
INSTA-TEST
INSTA-TEST Test Strips: 0 to 50 ppm Total Chlorine/4 to 10 pH, pH/Total Chlorine, 25 Tests, Strip (MPN 2987-G)
INSTA-TEST Test Strips: 0 to 10 ppm Nitrite/0 to 50 ppm Nitrate, Nitrate/Nitrite, 50 Tests, Strip (MPN 2996)
INSTA-TEST
INSTA-TEST Test Strips: 0 to 10 ppm Nitrite/0 to 50 ppm Nitrate, Nitrate/Nitrite, 50 Tests, Strip (MPN 2996)
INSTA-TEST Test Strips: 0 to 10 ppm Free Chlorine/0 to 10 ppm Total Chlorine, Total Chlorine, Strip (MPN 3027-G)
INSTA-TEST
INSTA-TEST Test Strips: 0 to 10 ppm Free Chlorine/0 to 10 ppm Total Chlorine, Total Chlorine, Strip (MPN 3027-G)