Pentair 300 Off-Line Chlorine/Bromine Feeder – Automatic Tablet Dispensing (12K–48K gal) | R171016

Pentair 300 Off-Line Chlorine/Bromine Feeder – Automatic Tablet Dispensing (12K–48K gal) | R171016

Pentair 300 off-line chlorine/bromine feeder. Holds 11 large or 98 small tablets. Automatic, enclosed system treats 12,000–48,000 gal without fumes or venting.

• Automatic Chemical Dispensing – Delivers consistent chlorine or bromine levels for pools up to 48,000 gallons.

• Holds Large or Small Tablets – Accommodates 11 large or 98 small tablets for flexible treatment.

• Fully Enclosed System – No venting required, controls gas escape, and operates at up to 50 psi .

• Off‑Line Installation – Connects via ¼″ feeder tubing to return plumbing—no cutting into main line.

• Built-In Flow Control Valve & Check Valve – Enables precise dosing and prevents backflow to pump or heater .

The Pentair 300 Off‑Line Feeder is a trusted, pressure-side chemical feeder designed to automatically sanitize pools between 12,000 and 48,000 gallons. Its durable, fully enclosed design prevents chlorine or bromine gas release and handles up to 50 psi, making it a safe, maintenance-friendly alternative to manual dosing.

This feeder accommodates both large (11-count) and small (98-count) tablets, giving you treatment flexibility. The off-line setup uses ¼″ tubing strategically installed on the return line—no need to cut pipes. Plus, its adjustable control valve lets you fine-tune sanitizer output, and the built-in check valve protects your equipment from chemical backflow.

Ideal for retrofit or new installations, the Rainbow 300 makes sanitizing hands-free, safe, and consistent, keeping water quality high and allowing you to avoid ozone gas escape or manual 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.