Taylor DPD Reagent #1 0.75 oz dropper refill — chlorine & bromine tester for comparator kits

Taylor Reagent #1 (R-0001-A) is a 0.75 oz DPD dropper refill used to test chlorine and bromine levels in pools and spas.

Keep your Taylor testing kit working at peak accuracy by replacing depleted reagents with this genuine 0.75 ounce DPD Reagent #1 refill. Designed to pair with Taylor comparator kits and compatible test bottles, this dropper reagent helps you measure sanitizer levels quickly. Use it alone for combined chlorine/bromine readings or together with DPD Reagent #2 to separate free chlorine from total bromine readings.

How does this reagent fit into my pool or spa testing routine?

The reagent is a direct replacement for the DPD #1 component in most Taylor liquid test kits. Collect a sample, add the correct number of drops, compare the resulting color to your comparator, and read the result. It’s lightweight, easy to store, and lasts through many tests when capped tightly and stored away from heat and light.

• 0.75 oz dropper bottle for precise dosing
• Works with Taylor comparator kits and many other DPD-compatible kits
• Use with DPD Reagent #2 to determine free chlorine vs. total bromine
• Simple colorimetric testing—no electronics required

Which water parameters can I check with Taylor Reagent #1?

DPD Reagent #1 is formulated to generate the color change associated with chlorine and bromine presence in water samples. When added to a water sample, it produces a pink/red tint proportional to the oxidizer concentration, allowing visual comparison against a color chart. For a full breakdown between free and combined oxidizers, pair it with reagent #2.

• Detects chlorine and bromine concentrations
• Enables free chlorine testing when used in sequence with other reagents
• Suits in-ground/outdoor pools, above-ground pools, hot tubs, and spas
• Color comparison method for quick onsite readings

How do I use and store the dropper safely for consistent results?

Use the dropper bottle exactly as your Taylor kit instructions direct: collect the sample, add the indicated number of drops, mix gently, then compare color. To preserve reagent strength, keep the bottle tightly capped, stored upright, and shielded from direct sunlight and extreme temperatures. Replace reagents seasonally or when color responses weaken.

• Follow kit pictograms and instructions for drop counts
• Store in a cool, dark place upright with cap sealed
• Dispose of expired or discolored reagent per local guidelines
• Carry a spare bottle to ensure uninterrupted testing all season

Why choose Taylor reagents over generic alternatives?

Taylor has manufactured water testing supplies in the USA since 1930 and designs reagents to match the precise formulations used in their comparator kits. Using original Taylor reagent refills helps maintain the intended accuracy and color response of your Taylor test system. Professional-grade quality and customer support make them a reliable choice for both homeowners and service techs.

• Engineered and made in the USA to fit Taylor kits
• Consistent color response for dependable readings
• Supported by decades of pool and spa testing expertise
• Available as seasonal replacements to extend kit life

Who is this for: Taylor Reagent #1 R-0001-A is ideal for pool and spa owners who already use a Taylor comparator kit, service professionals who need accurate reagent refills, and distributors stocking authentic test supplies. If you want straightforward colorimetric testing for chlorine and bromine with components matched to a trusted brand, this refill keeps your kit ready for quick, repeatable checks all season long.