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Refill Reagents

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OP Tablets, 250 pack Nitrite Titrant, 60 mL Potassium Iodide 50%, 60mL
OP Tablets, 250 pack
Usually Ships in 1 to 2 Business Days
Our Price: $99.99
Sale Price: $69.99
Savings: $30.00
18 in stock!
Nitrite Titrant, 60 mL
Usually Ships in 1 to 2 Business Days
Our Price: $94.99
Sale Price: $69.99
Savings: $25.00
25 in stock!
Potassium Iodide 50%, 60mL
Usually Ships in 1 to 2 Business Days
Our Price: $69.99
Sale Price: $61.99
Savings: $8.00
9 in stock!
AD1582-100: OP Tablets, 250 pack ND2270-B: Nitrite Titrant, 60 mL PI7450-B: Potassium Iodide 50%, 60mL
QAC DT, 60 mL Sodium Thiosulfate Solution, 60mL Sulfite Titrant High, 60 mL
QAC DT, 60 mL
Usually Ships in 1 to 2 Business Days
Our Price: $63.99
Sale Price: $54.99
Savings: $9.00
51 in stock!
Sodium Thiosulfate Solution, 60mL
Usually Ships in 1 to 2 Business Days
Our Price: $67.99
Sale Price: $54.99
Savings: $13.00
26 in stock!
Sulfite Titrant High, 60 mL
Usually Ships in 1 to 2 Business Days
Our Price: $59.99
Sale Price: $49.99
Savings: $10.00
20 in stock!
(1)
QA3500-B: QAC DT, 60 mL ST2775-B: Sodium Thiosulfate Solution, 60mL PI8063-B: Sulfite Titrant High, 60 mL
Sulfuric Acid 50%, 30 mL Hydrochloric Acid 7.7N, 60 mL Starch Indicator Solution 1%, 60 mL
Sulfuric Acid 50%, 30 mL
Usually Ships in 1 to 2 Business Days
Our Price: $66.99
Sale Price: $49.99
Savings: $17.00
25 in stock!
Hydrochloric Acid 7.7N, 60 mL
Usually Ships in 1 to 2 Business Days
Our Price: $66.99
Sale Price: $49.99
Savings: $17.00
19 in stock!
Starch Indicator Solution 1%, 60 mL
Usually Ships in 1 to 2 Business Days
Our Price: $62.99
Sale Price: $48.99
Savings: $14.00
6 in stock!
SA1940-A: Sulfuric Acid 50%, 30 mL HA6207-B: Hydrochloric Acid 7.7N, 60 mL ST5010-B: Starch Indicator Solution 1%, 60 mL
Potassium Iodide 50%, 60 mL Stannous Chloride Sodium Hydroxide 0.25N, 60 mL
Potassium Iodide 50%, 60 mL
Usually Ships in 1 to 2 Business Days
Our Price: $62.99
Sale Price: $48.99
Savings: $14.00
23 in stock!
(1)
2.5% Stannous Chloride Powder
Usually Ships in 24 to 48 Hours
Our Price: $54.99
Sale Price: $48.99
Savings: $6.00
13 in stock!
(4)
Sodium Hydroxide 0.25N, 60 mL
Usually Ships in 1 to 2 Business Days
Our Price: $56.99
Sale Price: $47.99
Savings: $9.00
26 in stock!
PI1450-B: Potassium Iodide 50%, 60 mL Stannous Chloride Powder - 10 to 500 grams (for sulfite testing)
SH6220-B: Sodium Hydroxide 0.25N, 60 mL
Sodium Thiosulfate, 60 mL Hardness Buffer Solution Hardness Indicator Powder, 10 grams
Sodium Thiosulfate, 60 mL
Usually Ships in 1 to 2 Business Days
Our Price: $54.99
Sale Price: $47.99
Savings: $7.00
19 in stock!
(1)
Hardness Buffer Solution, 60 mL
Usually Ships in 1 to 2 Business Days
Our Price: $69.99
Sale Price: $46.99
Savings: $23.00
14 in stock!
Hardness Indicator Powder, 10 grams
Usually Ships in 1 to 2 Business Days
Our Price: $59.99
Sale Price: $46.99
Savings: $13.00
37 in stock!
(1)
ST2970-B: Sodium Thiosulfate, 60 mL HA7407-B: Hardness Buffer Solution, 60 mL HA7475-H: Hardness Indicator Powder, 10 grams
Starch Acid / Sulfite Indicating Powder - 2 oz Magnesium Chloride Reagent, 60 mL Potassium Iodide 10%, 30mL
Starch Acid / Sulfite Indicating Powder - 2 oz
Usually Ships in 2 to 3 Business Days
Our Price: $51.99
Sale Price: $45.99
Savings: $6.00
38 in stock!
Magnesium Chloride Reagent, 60 mL
Usually Ships in 1 to 2 Business Days
Our Price: $47.99
Sale Price: $44.99
Savings: $3.00
8 in stock!
Potassium Iodide 10%, 30mL
Usually Ships in 1 to 2 Business Days
Our Price: $56.99
Sale Price: $44.99
Savings: $12.00
16 in stock!
(1)
Starch Acid / Sulfite Indicating Powder - 60 grams
MG2045-B: Magnesium Chloride Reagent, 60 mL PI1410-A: Potassium Iodide 10%, 30mL
OP Titrant #2, 60 mL Starch Acid Powder, 10 grams Citric Acid Solution, 30mL
OP Titrant #2, 60 mL
Usually Ships in 1 to 2 Business Days
Our Price: $48.99
Sale Price: $42.99
Savings: $6.00
18 in stock!
Starch Acid Powder, 10 grams
Usually Ships in 1 to 2 Business Days
Our Price: $49.99
Sale Price: $42.99
Savings: $7.00
19 in stock!
(3)
Citric Acid Solution, 30mL
Usually Ships in 1 to 2 Business Days
Our Price: $52.99
Sale Price: $42.99
Savings: $10.00
27 in stock!
AD1596-DB: OP Titrant #2, 60 mL ST5205-H: Starch Acid Powder, 10 grams CA3002-A: Citric Acid Solution, 30mL
Sodium Hydroxide 10.0N Sodium Hydroxide 1.0N, 60 mL Molybdenum Titrating Solution
Sodium Hydroxide 10.0N, 60 mL
Usually Ships in 1 to 2 Business Days
Our Price: $46.99
Sale Price: $42.99
Savings: $4.00
34 in stock!
Sodium Hydroxide 1.0N, 60 mL
Usually Ships in 1 to 2 Business Days
Our Price: $47.99
Sale Price: $41.99
Savings: $6.00
10 in stock!
Molybdenum Titrating Solution - 2 oz
Usually Ships in 2 to 3 Business Days
Our Price: $49.99
Sale Price: $39.99
Savings: $10.00
47 in stock!
SH6325-B: Sodium Hydroxide 10.0N SH6255-B: Sodium Hydroxide 1.0N, 60 mL Molybdenum Titrating Solution - 2 oz
Sulfuric Acid Titrating Solution Hardness Indicator, 30 mL Filter Paper, 9cm
Sulfuric Acid Titrating Solution - 2 oz
Usually Ships in 2 to 3 Business Days
Our Price: $42.99
Sale Price: $39.99
Savings: $3.00
23 in stock!
Hardness Indicator, 30 mL
Usually Ships in 1 to 2 Business Days
Our Price: $46.99
Sale Price: $39.99
Savings: $7.00
7 in stock!
(1)
Filter Paper, 9cm
Usually Ships in 1 to 2 Business Days
Our Price: $49.99
Sale Price: $39.99
Savings: $10.00
16 in stock!
Sulfuric Acid Titrating Solution - 2 oz
HA7430-A: Hardness Indicator, 30 mL FP0610-9: Filter Paper, 9cm
Sulfite Titrant Low, 60 mL Molybdenum Indicator Solvent, 60 mL Trace Hardness Titrant Low
Sulfite Titrant Low, 60 mL
Usually Ships in 1 to 2 Business Days
Our Price: $44.99
Sale Price: $39.99
Savings: $5.00
13 in stock!
Molybdenum Indicator Solvent, 60 mL
Usually Ships in 1 to 2 Business Days
Our Price: $49.99
Sale Price: $39.99
Savings: $10.00
17 in stock!
Trace Hardness Titrant Low, 60 mL
Usually Ships in 1 to 2 Business Days
Our Price: $49.99
Sale Price: $39.99
Savings: $10.00
17 in stock!
(2)
PI8056-B: Sulfite Titrant Low, 60 mL MO1591-B: Molybdenum Indicator Solvent, 60 mL ED2064-B: Trace Hardness Titrant Low, 60 mL
Potassium Hydroxide 0.1N, 60 mL Sodium Thiosulfate 0.1N / Peracetic DT, 60 mL Neutralizing Amine Titrating Solution
Potassium Hydroxide 0.1N, 60 mL
Usually Ships in 1 to 2 Business Days
Our Price: $46.99
Sale Price: $39.99
Savings: $7.00
35 in stock!
Sodium Thiosulfate 0.1N / Peracetic DT, 60 mL
Usually Ships in 1 to 2 Business Days
Our Price: $48.99
Sale Price: $39.99
Savings: $9.00
32 in stock!
Neutralizing Amine Titrating Solution, 60 mL
Usually Ships in 1 to 2 Business Days
Our Price: $41.99
Sale Price: $39.99
Savings: $2.00
10 in stock!
PH9275-B: Potassium Hydroxide 0.1N, 60 mL ST2910-B: Sodium Thiosulfate 0.1N / Peracetic DT, 60 mL HA6025-B: Neutralizing Amine Titrating Solution, 60 mL
Sulfuric Acid 50%, 30mL Total Alkalinity Indicator Ceric Sulfate
Sulfuric Acid 50%, 30mL
Usually Ships in 1 to 2 Business Days
Our Price: $44.99
Sale Price: $39.99
Savings: $5.00
16 in stock!
Total Alkalinity Indicator, 30 mL
Usually Ships in 1 to 2 Business Days
Our Price: $45.99
Sale Price: $39.99
Savings: $6.00
16 in stock!
(2)
Ceric Sulfate, 30 mL
Usually Ships in 1 to 2 Business Days
Our Price: $46.99
Sale Price: $38.99
Savings: $8.00
16 in stock!
(1)
SA7940-A: Sulfuric Acid 50%, 30mL AI6925-A: Total Alkalinity Indicator, 30 mL CE3075-A: Ceric Sulfate, 30 mL
Calcium Hardness Indicator, 10 grams Calcium Hardness Indicator, 10 grams Complexing Agent, 30 mL
Calcium Hardness Indicator, 10 grams
Usually Ships in 1 to 2 Business Days
Our Price: $42.99
Sale Price: $38.99
Savings: $4.00
21 in stock!
Calcium Hardness Buffer, 30 mL
Usually Ships in 1 to 2 Business Days
Our Price: $46.99
Sale Price: $38.99
Savings: $8.00
14 in stock!
Complexing Agent, 30 mL
Usually Ships in 1 to 2 Business Days
Our Price: $42.99
Sale Price: $38.99
Savings: $4.00
6 in stock!
CA1100-H: Calcium Hardness Indicator, 10 grams CA1119-A: Calcium Hardness Buffer, 30 mL CO3300-A: Complexing Agent, 30 mL
Sulfuric Acid 0.5N, 30 mL Molybdenum Buffer, 60 mL Molybdenum Titrating Solution, 60 mL
Sulfuric Acid 0.5N, 30 mL
Usually Ships in 1 to 2 Business Days
Our Price: $42.99
Sale Price: $38.99
Savings: $4.00
8 in stock!
Molybdenum Buffer, 60 mL
Usually Ships in 1 to 2 Business Days
Our Price: $42.99
Sale Price: $38.99
Savings: $4.00
18 in stock!
Molybdenum Titrating Solution, 60 mL
Usually Ships in 1 to 2 Business Days
Our Price: $42.99
Sale Price: $38.99
Savings: $4.00
19 in stock!
SA1590-A: Sulfuric Acid 0.5N, 30 mL MO1525-B: Molybdenum Buffer, 60 mL MO1546-B: Molybdenum Titrating Solution, 60 mL
Potassium Chromate Indicator, 60 mL Starch Indicator Solution 0.5%, 30mL Molybdate Reagent, 60 mL
Potassium Chromate Indicator, 60 mL
Usually Ships in 1 to 2 Business Days
Our Price: $42.99
Sale Price: $38.99
Savings: $4.00
8 in stock!
(1)
Starch Indicator Solution 0.5%, 30mL
Usually Ships in 1 to 2 Business Days
Our Price: $46.99
Sale Price: $38.99
Savings: $8.00
18 in stock!
Molybdate Reagent, 60 mL
Usually Ships in 1 to 2 Business Days
Our Price: $46.99
Sale Price: $38.99
Savings: $8.00
11 in stock!
PC8025-B: Potassium Chromate Indicator, 60 mL ST5005-A: Starch Indicator Solution 0.5%, 30mL MO1460-B: Molybdate Reagent, 60 mL
Alkalinity Titrant Low, 60 mL Hardness Buffer Solution, 30 mL Hardness Titrant High, 60 mL
Alkalinity Titrant Low, 60 mL
Usually Ships in 1 to 2 Business Days
Our Price: $49.99
Sale Price: $38.99
Savings: $11.00
48 in stock!
(1)
Hardness Buffer Solution, 30 mL
Usually Ships in 1 to 2 Business Days
Our Price: $41.99
Sale Price: $38.99
Savings: $3.00
23 in stock!
(4)
Hardness Titrant High, 60 mL
Usually Ships in 1 to 2 Business Days
Our Price: $56.99
Sale Price: $38.99
Savings: $18.00
17 in stock!
(2)
SA1555-B: Alkalinity Titrant Low, 60 mL HA7405-A: Hardness Buffer Solution, 30 mL ED2070-B: Hardness Titrant High, 60 mL
Peroxide Titrant Ferroin Indicator, 30 mL Toluidine Blue O Indicator, 30 mL
Peroxide Titrant, 60 mL
Usually Ships in 1 to 2 Business Days
Our Price: $49.99
Sale Price: $37.99
Savings: $12.00
9 in stock!
Ferroin Indicator, 30 mL
Usually Ships in 1 to 2 Business Days
Our Price: $42.99
Sale Price: $37.99
Savings: $5.00
10 in stock!
(1)
Toluidine Blue O Indicator, 30 mL
Usually Ships in 1 to 2 Business Days
Our Price: $44.99
Sale Price: $36.99
Savings: $8.00
12 in stock!
ND7505-B: Peroxide Titrant, 60 mL FE3144-A: Ferroin Indicator, 30 mL TB3800-A: Toluidine Blue O Indicator, 30 mL
Molybdenum Indicator Powder, 10 grams Methyl Orange Indicator Alkalinity Titrant High, 60 mL
Molybdenum Indicator Powder, 10 grams
Usually Ships in 1 to 2 Business Days
Our Price: $42.99
Sale Price: $36.99
Savings: $6.00
13 in stock!
Methyl Orange Indicator, 30 mL
Usually Ships in 1 to 2 Business Days
Our Price: $39.99
Sale Price: $36.99
Savings: $3.00
19 in stock!
(1)
Alkalinity Titrant High, 60 mL
Usually Ships in 1 to 2 Business Days
Our Price: $39.99
Sale Price: $36.99
Savings: $3.00
27 in stock!
(1)
MO1589-H: Molybdenum Indicator Powder, 10 grams MO3319-A: Methyl Orange Indicator, 30 mL SA1595-B: Alkalinity Titrant High, 60 mL
Phenolphtalein Indicator - 30 mL Molybdenum Buffer Solution - 1 oz Mixed Molybdenum Indicator Solution
Phenolphtalein Indicator - 30 mL
Usually Ships in 1 to 2 Business Days
Our Price: $38.99
Sale Price: $36.99
Savings: $2.00
27 in stock!
(2)
Molybdenum Buffer Solution - 1 oz
Usually Ships in 2 to 3 Business Days
Our Price: $37.99
Sale Price: $34.99
Savings: $3.00
26 in stock!
Mixed Molybdenum Indicator Solution - 1 oz
Usually Ships in 2 to 3 Business Days
Our Price: $37.99
Sale Price: $34.99
Savings: $3.00
45 in stock!
PH1605-A: Phenolphtalein Indicator - 30 mL Molybdenum Buffer Solution - 1 oz
Mixed Molybdenum Indicator Solution - 1 oz
3% Hydrogen Peroxide Solution Silver Nitrate Titrating Solution Hardness Indicator Powder
3% Hydrogen Peroxide Solution - 1 oz
Usually Ships in 2 to 3 Business Days
Our Price: $37.99
Sale Price: $34.99
Savings: $3.00
8 in stock!
Potassium Chromate Indicator Solution - 1 oz
Usually Ships in 2 to 3 Business Days
Our Price: $37.99
Sale Price: $34.99
Savings: $3.00
42 in stock!
Hardness Indicator Powder with Scoop - 30 grams
Usually Ships in 2 to 3 Business Days
Our Price: $42.99
Sale Price: $34.99
Savings: $8.00
25 in stock!
3% Hydrogen Peroxide Solution - 1 oz
Potassium Chromate Indicator Solution - 1 oz
Hardness Indicator Powder (Calmagite) with Scoop - 30 grams
Calcium Indicator Powder Calcium Indicator Powder Calcium Buffer Solution
Calcium Indicator Powder (Murexide) with Scoop - 30 grams
Usually Ships in 2 to 3 Business Days
Our Price: $37.99
Sale Price: $34.99
Savings: $3.00
14 in stock!
Calcium Indicator Powder (HNB) with Scoop - 30 grams
Usually Ships in 2 to 3 Business Days
Our Price: $37.99
Sale Price: $34.99
Savings: $3.00
49 in stock!
Calcium Buffer Solution - 2 oz
Usually Ships in 2 to 3 Business Days
Our Price: $37.99
Sale Price: $34.99
Savings: $3.00
45 in stock!
Calcium Indicator Powder (HNB) with Scoop - 30 grams
Calcium Indicator Powder (HNB) with Scoop - 30 grams
Calcium Buffer Solution - 1 oz
Nitrite Indicator Solution - 1 oz Methyl Purple Indicator Solution 10% Barium Chloride Solution - 1 oz
Nitrite Indicator Solution - 1 oz
Usually Ships in 2 to 3 Business Days
Our Price: $37.99
Sale Price: $34.99
Savings: $3.00
32 in stock!
(1)
Methyl Purple Indicator Solution - 1 oz
Usually Ships in 2 to 3 Business Days
Our Price: $37.99
Sale Price: $34.99
Savings: $3.00
47 in stock!
10% Barium Chloride Solution - 1 oz
Usually Ships in 2 to 3 Business Days
Our Price: $37.99
Sale Price: $34.99
Savings: $3.00
43 in stock!
(1)
Nitrite Indicator Solution - 1 oz
Methyl Purple Indicator Solution - 1 oz
10% Barium Chloride Solution - 1 oz
Sulfuric Acid 1.0N, 60 mL Sodium Thiosulfate 0.0365N, 60 mL Hardness Titrant Low, 60 mL
Sulfuric Acid 1.0N, 60 mL
Usually Ships in 1 to 2 Business Days
Our Price: $39.99
Sale Price: $34.99
Savings: $5.00
10 in stock!
Sodium Thiosulfate 0.0365N, 60 mL
Usually Ships in 1 to 2 Business Days
Our Price: $37.99
Sale Price: $34.99
Savings: $3.00
16 in stock!
(1)
Hardness Titrant Low, 60 mL
Usually Ships in 1 to 2 Business Days
Our Price: $38.99
Sale Price: $34.99
Savings: $4.00
23 in stock!
(1)
SA1625-B: Sulfuric Acid 1.0N, 60 mL ST2705-B: Sodium Thiosulfate 0.0365N, 60 mL ED2073-B: Hardness Titrant Low, 60 mL
PIT #1 Tablets Silver Nitrate Titrating Solution - 2 oz Potassium Iodide-Iodate Titrating Solution
PIT Number 1 Tablets - 50 tests
Usually Ships in 2 to 3 Business Days
Our Price: $35.99
Sale Price: $32.99
Savings: $3.00
30 in stock!
Silver Nitrate Titrating Solution - 2 oz
Usually Ships in 2 to 3 Business Days
Our Price: $35.99
Sale Price: $32.99
Savings: $3.00
21 in stock!
Potassium Iodide-Iodate Titrating Solution - 2 oz
Usually Ships in 2 to 3 Business Days
Our Price: $35.99
Sale Price: $32.99
Savings: $3.00
36 in stock!
PIT #1 Tablets - 50 / packet
Silver Nitrate Titrating Solution - 2 oz
Potassium Iodide-Iodate Titrating Solution - 2 oz
Total Alkalinity Indicator Solution - 1 oz Phenolphthalein Indicator Solution Chloride Titrant, 60 mL
Total Alkalinity Indicator Solution - 1 oz
Usually Ships in 2 to 3 Business Days
Our Price: $36.99
Sale Price: $32.99
Savings: $4.00
24 in stock!
Phenolphthalein Indicator Solution - 1 oz
Usually Ships in 2 to 3 Business Days
Our Price: $39.99
Sale Price: $32.99
Savings: $7.00
15 in stock!
(2)
Chloride Titrant, 60 mL
Usually Ships in 1 to 2 Business Days
Our Price: $36.99
Sale Price: $32.99
Savings: $4.00
6 in stock!
(1)
Total Alkalinity Indicator Solution - 1 oz
Phenolphthalein Indicator Solution - 1 oz
SN3410-B: Chloride Titrant, 60 mL
PTS #2 Titrating Solution - 2 to 16 oz Sodium Molybdate Titrating Solution Sulfuric Acid Neutralizing Solution
PTS #2 Titrating Solution - 2 to 16 oz
Usually Ships in 2 to 3 Business Days
Our Price: $32.99
Sale Price: $29.99
Savings: $3.00
13 in stock!
Sodium Molybdate Solution - 2 oz
Usually Ships in 2 to 3 Business Days
Our Price: $32.99
Sale Price: $29.99
Savings: $3.00
21 in stock!
Sulfuric Acid Neutralizing Solution - 1 oz
Usually Ships in 2 to 3 Business Days
Our Price: $37.99
Sale Price: $29.99
Savings: $8.00
20 in stock!
PTS #2 Titrating Solution - 2 to 16 oz
Sodium Molybdate Titrating Solution - 2 oz
Sulfuric Acid Neutralizing Solution - 1 oz
Hardness Titrating Solution Ceric Sulfate Titrating Solution - 2 oz Ceric Sulfate Titrating Solution - 2 oz
Hardness Titrating Solution - 2 oz
Usually Ships in 2 to 3 Business Days
Our Price: $32.99
Sale Price: $29.99
Savings: $3.00
28 in stock!
Ceric Sulfate Titrating Solution - 2 oz
Usually Ships in 2 to 3 Business Days
Our Price: $32.99
Sale Price: $29.99
Savings: $3.00
25 in stock!
Ceric Sulfate Titrating Solution - 2 oz
Usually Ships in 2 to 3 Business Days
Our Price: $32.99
Sale Price: $29.99
Savings: $3.00
48 in stock!
(1)
Hardness Titrating Solution - 2 oz
Ceric Sulfate Titrating Solution - 2 oz
Ceric Sulfate Titrating Solution - 2 oz
Potassium Iodide-Iodate Titrating Solution - 2 oz
Potassium Iodide-Iodate Titrating Solution - 2 oz
Usually Ships in 2 to 3 Business Days
Our Price: $32.99
Sale Price: $29.99
Savings: $3.00
17 in stock!
Potassium Iodide-Iodate Titrating Solution - 2 oz