Skip Content

Want to pay an invoice? Please call us at 1-800-GRAINGER (1-800-472-4643).

Filter Results By

Branch Availability
For Use With
Shop By

Reagents and Refills

575 Results Found that Include 575 Products

Results per page:  16 | 32 | 48
PD250 Dispenser, Free Chlorine
DPD Total CL2 Reagent PP,10 ml
  • DPD Total CL2 Reagent PP, 10 ml DPD Total CL2 Reagent PP,10 ml
  • Item # 3VXT7
  • Mfr. Model # 530120
  • Water Quality Replacement Reagent, For Chlorine Colorimeter 3VXP4, Reagent can also be used with Hach...More

DPD Total CL2 Reagent PP,5 ml,100 ct
DPD Free CL2 Reagent PP, 5 ml,  100 ct
Reagent Refill,Nitrate,Range 0 to 15 PPM
DPD Free CL2 Reagent PP, 10 ml 1000 ct
Reagent Refill,pH Test Kit,3.0 to 10.5
Reagent Refill,Free Chlorine,0.2to3.0PPM
DPD Free CL2 Reagent PP,10ml,PK100
Reagent Refill,Chlorine,0 to 200 PPM
Reagent Refill,Water Hardness
  • Reagent Refill, Water Hardness Reagent Refill,Water Hardness
  • Item # 4EWE5
  • Mfr. Model # R-4482-LI-01
  • Reagent Refill, Water Hardness, For Use With LaMotte 4482-LI-02 Water Quality Testing Kit, Includes Reagents...More

Electrode Storage Solution,PH,1 Pint
DPD Total CL2 Reagent PP, 25 ml,  100 ct
Lead Reagent System,PK50
  • Lead Reagent System, PK50 Lead Reagent System,PK50
  • Item # 4KEJ8
  • Mfr. Model # 4031-01
  • Lead Reagent System, PAR Method, Range 0 to 5.0 ppm, For Use With LaMotte 1919 Multi-test Colorimeter,...More

Colorimeter Reagent,COD,PK25
Dechlor Tablets
  • Dechlor Tablets Dechlor Tablets
  • Item # 24AP15
  • Mfr. Model # 512350
  • Dechlor Tablets, CAS Number 9999-99-9, 7632-00-0, Container Size 5g, Container Material Plastic, Shelf Life...More

Tablets HR,Reagents
  • Tablets HR, Reagents Tablets HR,Reagents
  • Item # 24AN98
  • Mfr. Model # 511590BT
  • Tablets HR , CAS Number 7681-11-0, 9999-99-9, Container Size 5g, Container Material Plastic, Shelf Life 36...More

QAC Test Tablets
  • QAC Test Tablets QAC Test Tablets
  • Item # 24AP59
  • Mfr. Model # 515410
  • QAC Test Tablets, CAS Number 9999-99-9, 10043-35-3, 151-21-3, 9004-34-6, Container Size 5g, Container...More

Reagent,Powder Pack,PK100
  • YSI
  • Reagent, Powder Pack, PK100 Reagent,Powder Pack,PK100
  • Item # 25JZ83
  • Mfr. Model # SULFAMIC ACID TP
  • Reagent, Powder Pack, Range Dependent on DPD Range, Used in Other Manufacturer Instruments Only., For Use...More

Hexavalent Chromium Regeant Kit,PK100
PD250 Dispenser, Total Chlorine
Reagent Refill,Caustic,For Use With4EVY7
Test Kit Refill, Education Pollution
Test Strip,Micro 7 W Total Clear Reagent
Phosphate 3 Reagent PP, 10 ml,PK100
Reagent,Total Chlorine,0.2to3PPM,PK50
Reagent System,Cl,0 to 4 PPM,PK200
Reagent Refill,For Use With 4EVT7
Reagent System,Chlorine,0 to 4 PPM
Reagent Refill,Copper,0.05 to 1.0 PPM
Results per page:  16 | 32 | 48

Stock up on reagents and refills at Grainger to complement your water testing instruments. Find tablet reagents to help measure total and free chlorine; liquid reagent refills to help test water hardness; iron ferro, potassium iodide and other reagents for use with your colorimeter and more. Also find electrode cleaning kits, test refill kits for your nitrite meter and much more. Shop Grainger today for reagents and refills to help maintain adequate supplies.

Note: Product availability is real-time basis and adjusted continuously. The product will be reserved for you when you complete your order. More