Pentair HC-3315 High-Capacity Off-Line Chlorinator – Holds 15 lb Tablets | R171215

Pentair HC-3315 High-Capacity Off-Line Chlorinator – Holds 15 lb Tablets | R171215

Pentair HC-3315 off-line chlorinator. Holds 15 lb tablets, treats up to 97,600 gal (Cl₂), 20,200 gal (Br₂). Enclosed, 1" plumbing, adjustable feeding, up to 50 psi.

• Holds up to 15 lbs of Tablets – Compatible with slow-dissolving chlorine or bromine tablets.

• High-Capacity Output – Treats up to ~97,600 gal with trichlor or ~20,200 gal with bromine.

• Fully Enclosed, No Vent Required – Contains gas fumes, handles working pressures up to 50 psi.

• Off-Line Plumbing with 1" PVC – Installs on a return line via standard 1-inch fittings and tubing—no intervention to main plumbing.

• Adjustable Control Valve & Union Connections – Fine-tune chemical output and simplify maintenance or winter prep.

The Pentair HC-3315 is a commercial-grade, high-capacity off-line chlorinator designed to deliver hands-free disinfection in large residential or medium commercial pools. With a 15-pound chemical load capacity, it accommodates slow-dissolve chlorine or bromine tablets for long-lasting sanitation cycles, capable of treating up to ~97,600 gallons with chlorine or 20,200 gallons with bromine.

Unlike vented units, this feeder is fully enclosed, preventing gaseous release and safely operating under pressures up to 50 psi. It installs off-line using 1" PVC plumbing and standard unions, making it a non-invasive addition to your return line

Carefully engineered with a heavy-duty control valve and detachable unions, the HC-3315 ensures precise dosing and easy cleaning or winterization. Built to NSF standards, it’s a reliable, maintenance-friendly solution for keeping large pools crystal-clear—all while reducing manual chemical handling.

We want you to have quick and easy access to warranty information for all the brands we carry. Please click on the links below to view each manufacturer’s warranty page:

• Pentair Warranty
  
• A&A (Pentair In-Floor) Warranty
  
• Fluidra Warranty (Zodiac / Jandy / Polaris / Caretaker)
  
• Paramount Warranty
  
• BlueSquare Warranty
  
• Hayward Warranty
  
• All Other Manufacturer Warranties
  

Note: Warranty coverage, registration, and service terms are provided directly by the manufacturer. Please review the details carefully to ensure proper understanding of coverage and claim procedures.