ChemSeid
Water Testing Kits & Chemical Reagents
Premium testing kits, strips, reagents, instruments & lab essentials — ready to ship from USA stock. Brands include Merck, Lovibond, Hach, Palintest, ChemSeid & more.
Water Testing Kits & Strips
Free Chlorine Test Strips
0-10ppm, quick read, bottle of 100
In stockPeroxide Test Strips
0-25ppm / 0-100ppm, 100 strips/bottle
ChemSeidpH Strips 0-14
Universal indicator, 100 strips/bottle, easy read
Nitrite Test Strips
0-80ppm, 100 strips, also mini kit available
Sulfite Test Strips
0-1000ppm, 100 strips/bottle
Drinking Water Test Strips
9 in 1 (100 strips) & 16 in 1 (100 strips) ChemSeid
Arsenic Kit
10-50 PPB, 10 tests, high sensitivity
Fluoride Test Kit
0-10 ppm / 0-100 ppm, 50 tests
Phosphate Kit
Low range / high range, comparator
Iron Kit
0.2-10 mg/l, test tube & tablet methods
Chloride Kit
titration / comparator
Nitrate Kit / Strips
0-100ppm (0,1,10,25,50,100) strips & wet chemistry
Comparator Test Kit
for Chlorine, pH, etc. disc type
Chlorine Test Kit (DPD)
free & total, 0.1-2 mg/l, 300 tests (Lohand)
Organophosphate Kit
screening test for pesticides
Total Chlorine Kit
strips & liquid, 100 tests
Vario Total Nitrogen / Vario Sulfa
tube tests, high precision
Vario Ammonia
0.01–1.0 mg/l NH3-N
Total Hardness Kit
titration, EDTA method
COD Test Kit
0-250 mg/l, 0-800 mg/l, tube type
Nitrite Mini Kit
compact for field use
Sulphite Mini Kit
rapid test for sulfite
Salica Test Kit (Silica)
0.05-4 mg/l SiO2
Ozone Test Kit
0.05-1 mg/l, 50 tests (Lohand)
Copper Test Kit
0.2-5 mg/l, 25 tests (Lohand)
Cyanide Test Kit
0.005-0.5 mg/l, 50 tests (Lohand)
Hydrogen Peroxide Strips
0-25 / 0-100 ppm
Sulfur Dioxide Strips
0-400 ppm
Chlorine Strips (free)
0-10 ppm, bottle of 100
Photometers, Meters & Instruments
Photometer DR-1900
Portable spectrophotometer, Hach compatible
MD 600 Photometer
Lovibond, multi-parameter, 600 wavelengths
MD 200 Meter
Compact photometer for wastewater
Senso Direct 150
Lovibond portable photometer
SD 320 Conductivity Meter
Benchtop, high accuracy
COD Reactor, 4 Holes (China)
150°C constant, for COD digestion
pH Meter & Conductivity Meter (China)
economical benchtop / portable
pH Tester / pH-220
pocket-sized, waterproof
TDS Tester
ppm range, digital
Silt Density Index (SDI) Kit
47mm, 0.45um membrane, complete set
Test Tubes, Cuvettes & Reagent Refills
Cadmium test tube
0.01-0.1-0.3-0.6-1 mg/l
COD test tube (0-250mg/l)
16mm, ready to use
COD test tube (0-800mg/l)
high range, 25 pcs
Total Iron test tube
0.2-0.5-1-2-5-10 mg/l
Quartz Cell for UV-Vis 10mm
pair, fused quartz
Quartz Cell for UV-Vis 20mm
for spectrophotometers
Quartz Cell for UV-Vis 50mm
long path, UV grade
Ammonia Nitrogen 10ml
reagent for Nessler method
Ammonium Reagent
for salicylate / indophenol
Tablets for testing
DPD No.1, No.3, pH, Alka etc.
High Purity Reagents & Salts
Ammonium Persulfate
ACS grade, 500g
Calcium Chloride anhydrous
granular, 93%
Disodium Hydrogen phosphate
anhydrous / dihydrate
Diethanolamine
99% pure, 500ml
Methyl Blue
indicator grade, 25g
Potassium bicarbonate
food/tech grade
Potassium Nitrate
crystal, 99%
Sodium Acetate trihydrate
ACS, 500g
Taurine
USP grade, 1kg
Trisodium Phosphate dodecahydrate
technical grade
Iodine (Dukson)
resublimed, 100g
Potassium Iodide (Dukson)
99.5%, 500g
Ammonium Acetate
HPLC grade, 1kg
Potassium hydrogen phthalate
primary standard
Potassium Chloride
crystalline, 500g
Dipotassium hydrogen phosphate anhydrous
molecular biology
Monopotassium phosphate
ACS, 1kg
Sorbic Acid
food preservative, 500g
Sodium perborate trihydrate
bleach agent
Acetyle Aceton 25 liter
solvent, technical grade
Sodium Metabisulfite (Sodium Bisulfite)
food grade, 500g
Octyl Methoxy Cinnamate
UV filter, cosmetic grade
COD Standard Solution 1000ppm
for calibration, 500ml
PBS 200ml Tablets (Phosphate buffered saline)
each tablet for 200mL
Solvent h
HPLC grade, 4L
Acetic Acid glacial
99.8%, 2.5L
Sodium pyrophosphate decahydrate
lab grade, 500g
ChemSeid USA Kits & Specialties
Soil Test Kit, 4 in 1, 40 tests
pH, N, P, K, ChemSeid
Soil Testing Kit (general)
for agriculture
pH Indicator Strips (0-14)
100 strips, roll type
Residual Chlorine Test Strips
0-5ppm, 100/bottle
Total Chlorine Test Strips
0-10ppm, 100 strips
Peroxide Test Strips (0-100ppm)
100 strips, ChemSeid
Nitrite Test Strips (0-80ppm)
100 strips, ChemSeid
Sulfite Test Strips (0-1000ppm)
100 strips, ChemSeid
Arsenic Test Kit, 10 tests
10-50 PPB, ChemSeid
Fluoride Test Kit, 50 tests
0-10 ppm / 0-100 ppm
pH 0-14, 100 strips/bottle
ChemSeid, full range
Drinking Water Test Strips 9 in 1
100 strips, ChemSeid
Drinking Water Test Strips 16 in 1
100 strips, ChemSeid
* external partner: upstocks.io
Frequently Asked Questions about Water Testing Kits & Reagents
What water testing kits do you stock?
We carry a comprehensive range including free & total chlorine, pH strips (0-14), arsenic kits, fluoride, nitrate, nitrite, phosphate, iron, and COD test kits. Brands: Merck, Lovibond, Hach, Palintest, and ChemSeid USA.
Are your chemical reagents high purity?
Yes. Our reagents like ammonium persulfate, potassium iodide, sodium acetate, and acetic acid are ACS/Reagent grade. We also supply primary standards and HPLC solvents.
Do you sell photometers and COD reactors?
Absolutely. We offer DR-1900, MD 600, MD 200, SensoDirect 150 photometers, and a 4-hole COD reactor. Also SDI kits, conductivity meters, and pH testers.
What are the shelf lives of test strips?
Most test strips (e.g., peroxide, sulfite, nitrite, chlorine strips) have a shelf life of 2-3 years when stored cool and dry. Each bottle shows an expiry date.
Do you ship from USA stock?
Yes. We maintain ready stock in our USA warehouse. Items like Lohand kits, ChemSeid drinking water strips, and quartz cuvettes ship within 1-2 business days.
How can I get a quote for bulk orders?
Use the “Request a Quote” button above or contact us directly. We provide volume discounts on reagents, tablets, and instrument kits.
For more details on water analysis, chemical reagents, or photometers, contact our team.