Nelsen AIO Sulfur Filter System

Nelsen AIO Sulfur Filter System is a complete air-injection oxidation (AIO) system built to reduce hydrogen sulfide, the rotten-egg odor common in well water. It uses an air pocket held in the tank to oxidize dissolved sulfur so it can be filtered out and flushed to drain during backwash, all without continuous chemical dosing.

• Complete AIO system for hydrogen sulfide (sulfur odor) treatment
• Air-injection oxidation process, no chemical feed required
• Automatic backwash recharges the air pocket and rinses the bed
• Tank size selectable to match your flow and water conditions
• Sized at no charge to your specific water chemistry

Air-injection systems are a popular chemical-free approach for treating sulfur odor on private wells, drawing air into the top of the tank where it contacts and oxidizes incoming water. Choose your tank size below and we will size the system free to your water so the media volume and flow suit your household. This system targets sulfur odor; if your water also carries iron, manganese, or hardness, pair it with the appropriate additional treatment.