The Pro Products HP41N Professional Grade Oxidizer is a 7% food-grade hydrogen peroxide solution specifically formulated for use with chemical feed pump systems on well water applications. It is designed to oxidize and eliminate hydrogen sulfide (rotten egg smell), iron, manganese, and sulfur bacteria from your water supply. Unlike chlorine-based oxidizers, the HP41N leaves no chemical residue, taste, or odor behind, breaking down into water and oxygen after treatment. It is sold as a 4-gallon case (four 1-gallon jugs) for professional-grade whole-house well water treatment.

The injection rate for the Pro Products HP41N Oxidizer depends on the concentration of contaminants in your water. Typically, dosing ranges from 1 to 3 ppm (parts per million) of peroxide per 1 ppm of hydrogen sulfide, iron, or manganese present. For most residential well applications, this translates to roughly 1 gallon of HP41N lasting 2–6 weeks when paired with a properly calibrated chemical feed pump and contact tank. A water test is strongly recommended to determine the exact feed rate, and the 7% peroxide concentration is specifically optimized to work with standard peroxide injection systems such as those from Pro Products.

Yes, the Pro Products HP41N is formulated with food-grade 7% hydrogen peroxide, making it safe for potable water treatment when used as directed. Hydrogen peroxide at this concentration is certified under NSF/ANSI Standard 60 for drinking water treatment chemicals when used in approved injection systems. Because it decomposes into water (H₂O) and oxygen (O₂), it leaves no harmful byproducts, unlike chlorine which can create disinfection byproducts (DBPs). Always pair the HP41N with a catalytic carbon backwashing filter downstream to remove oxidized contaminants from the water.

The Pro Products HP41N should be stored in its original, tightly sealed container in a cool, dry, well-ventilated area away from direct sunlight, heat sources, and incompatible materials (such as organic solvents or metals like iron and copper). When stored properly at temperatures below 77°F (25°C), the 7% hydrogen peroxide solution has a shelf life of approximately 12 months from the manufacture date. Peroxide concentration naturally degrades at about 1–2% per year under ideal conditions, so using fresh product ensures maximum oxidation efficiency in your well water system.

To properly use the HP41N, you will need a chemical injection pump (such as a Stenner or similar peroxide-compatible metering pump), a solution tank, a retention/contact tank (typically 20–40 gallons) to allow adequate oxidation time, and a downstream catalytic carbon filter to remove the oxidized iron, manganese, sulfur, and residual peroxide. The HP41N is specifically formulated to be compatible with peroxide-rated pump components—never use a standard chlorine pump, as peroxide requires Viton or EPDM seals and specific tubing to prevent degradation. For best results, follow Pro Products' recommended system configuration for whole-house well water treatment.