Pentair Rainbow 300-29X Off-Line Automatic Chlorine/Bromine Tablet Feeder R171070
Pentair Rainbow 300-29X Off-Line Automatic Chlorine/Bromine Tablet Feeder R171070
Ensure powerful pool sanitation with the Pentair Rainbow 300‑29X Off‑Line Automatic Chlorine/Bromine Tablet Feeder R171070. Shasta Pool Supply provides competitive pricing and fast shipping on genuine Pentair feeders.
Pentair Rainbow Automatic Tablet Feeder R171070
Moreover, this feeder delivers consistent chemical dissolution using heavy-duty control valve technology built for high-capacity applications. Additionally, its rugged construction and large tablet capacity support reliable performance for pools.

Collapsible content
Key Features
- Automatically maintains sanitizer levels reducing manual chemical handling needs.
- Heavy duty control valve optimizes flow and erosion for efficient dosing.
- Enclosed system eliminates escaping gases improving pool safety.
- Adjustable feed rate dial provides flexibility for pool or spa setups.
Technical Specifications
- Model number: R171070
- Tablet type: 1-inch trichlor/bromine
- Capacity: 29 large or 237 small tablets
- Flow capacity: treats up to 322 000 gallons
Specs
- Part Number: R171070
- Manufacturer: Pentair
Enjoy stress-free pool care with the Pentair Rainbow 300-29X feeder!
This feeder delivers steady chlorine levels during every swim season. Daily sanitizer work disappears once this system takes over. Consistent erosion control protects water clarity without constant attention. Smooth tablet dosing supports clean water quality. Moreover, stable sanitizer output helps maintain swimmer comfort. Operational ease gives every owner simple maintenance control. Furthermore, reliable flow design supports dependable tablet feed rates. Long-term durability gives each pool a trusted sanitizing solution. This feeder creates a cleaner swim experience for every backyard.
What is the benefit of an auto feeder?
An automatic feeder delivers steady sanitation without daily handling, which keeps water consistent and clear through stable tablet erosion. The system supports predictable chlorination that reduces swings that cause irritation, algae, or cloudy water. An auto feeder also protects tablets from direct pump pressure, which helps extend tablet life. Many owners value the convenience because the feeder eliminates constant measuring, opening buckets, or guessing chlorine demand during hotter weeks. This creates a smoother routine that supports better water balance and fewer shock treatments.
Maintenance stays simple. The feeder only needs periodic refills, quick inspections of the lid O-ring, and basic checks for tablet flow. A flush of the internal chamber once or twice a season clears residue that can slow distribution. Tubing should be checked for kinks or buildup that restrict water movement. With these small tasks, the feeder maintains strong performance throughout the year and keeps sanitation predictable under shifting pool conditions.
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What our customers are saying
Very friendly and knowledgeable staff! Answered all of my questions and provided some information I wasn't aware of which was very helpful.
Very friendly and knowledgeable staff! Answered all of my questions and provided some information I wasn't aware of which was very helpful.
Wade L
I picked up my order at the headquarters in Phoenix. Courteous staff.
I picked up my order at the headquarters in Phoenix. Courteous staff.
William J
Our pool water is very clear. I wasn't really expecting this from the Shasta Pure unit... I feel like our pool is more clear looking, its kinds like swimming in drinking water...
Our pool water is very clear. I wasn't really expecting this from the Shasta Pure unit... I feel like our pool is more clear looking, its kinds like swimming in drinking water...
Erin A.
FAQ
Our expert staff answers customer's most asked questions.
What tablet size does this feeder use?
1-inch tablets.
What pool size does it treat?
This feeder can treat pools up to 80000 - 322000 gal
Is installation simple?
Pentair makes it easy to install their replacement equipment, with numerous guides and videos available online.
Learning Center
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