SKU: 23919805571

PENTAIR IN-LINE FEEDER AUTOMTIC CHLORINE - R171218

$102.83 $114.25
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Ships within 48 hours · Estimated delivery Aug 22 - Aug 27

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Description

PENTAIR IN-LINE FEEDER AUTOMTIC CHLORINE - R171218The Pentair Rainbow 320 Series R171218 automatic in line chlorine feeder delivers reliable, hands off sanitization that pool contractors trust for commercial and residential installations. This NSF 50 certified feeder handles up to 70,000 gallons per day, making it ideal for large scale projects while reducing maintenance callbacks and ensuring consistent water quality. Professional Installation Benefits Designed for permanent installation in the

The Pentair Rainbow 320 Series R171218 automatic in-line chlorine feeder delivers reliable, hands-off sanitization that pool contractors trust for commercial and residential installations. This NSF 50 certified feeder handles up to 70,000 gallons per day, making it ideal for large-scale projects while reducing maintenance callbacks and ensuring consistent water quality.

Professional Installation Benefits

Designed for permanent installation in the return line downstream of all equipment, this feeder eliminates manual chlorination tasks for your clients while providing precise chemical control. The adjustable feed rates and built-in check valve prevent backflow issues that can damage equipment and create costly service calls. Top-loading design allows easy tablet refills without disrupting plumbing connections.

Why Pool Contractors Choose MT Pools

MT Pools provides superior customer service with expert technical support for complex installations. Our B2B wholesale pricing structure maximizes your profit margins while our reliable inventory ensures your projects stay on schedule. Join thousands of contractors who depend on our daily recurring customer support.

Frequently Asked Questions

What pool sizes can the R171218 handle effectively?

The Rainbow 320 can treat pools up to 70,000 gallons per day with top feed configuration using 1" trichlor tablets, making it suitable for large residential and commercial applications.

Is this feeder NSF certified for commercial use?

Yes, the R171218 is NSF 50 certified for both public and residential pools when using 1" Trichlor tablets with a flow indicating device, ensuring compliance with health department requirements.

What tablet capacity does this feeder hold?

The chamber holds up to 98 one-inch tablets (3.5 lbs) or 11 three-inch tablets (4.8 lbs), providing extended operation between refills for reduced maintenance visits.

Does MT Pools offer technical support for installation?

Yes, MT Pools provides expert technical guidance and superior customer service to ensure proper installation and optimal performance for all contractor projects.

Order Today

Streamline your pool sanitization installations with this proven automatic feeder. Contact MT Pools for wholesale pricing and expert support that keeps your projects profitable and on schedule.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 23919805571

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4.0 ★★★★★
Based on 18 reviews
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Verified Purchase
Emily R
Grantham, US
★★★★★ 5
Nice quality for the price
Color: Tortoise Frame/Brown Lens
Love these. Better quality than I thought they might be. Fit well, look nice.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 29, 2026
C
Verified Purchase
cmomes
Charlottesville, US
★★★★★ 5
Quality for lower price than brand sunnies
Color: Beige Tortoise Frame / Brown Gradient Lens
High quality for a low price. I'm someone who always loses my sunglasses so I won't allow myself to purchase any name brands. I've had my fair share of cheap sunnies for this reason. These are probably the best "off-brand" I've tried - and I've tried a lot. They are definitely polarized and are lightweight with a good fit - some of the cheaper brands are really tight on the ears and the plastic is clearly cheaply made, making them heavier. They are also a cute style with a variety of colors available. The other thing with cheaper sunglasses is they are usually not that great to peer out of. Some of them I can't wear to drive bc they are too dark, or not dark enough for glares on the road. These are great for driving - the lens coloring is just right to see well and also feel like you're not squinting. I'm buying another pair for when I inevitably lose these!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 12, 2025
P
Verified Purchase
Porkysmom
New York, US
★★★★★ 5
Polarized sunglasses are just what I needed
Color: Tortoise Frame / Mirror Pink Lens
I really like these sunglasses. They are polarized and work great. They fit well and don't fall off when I bend over, which is important. They are light on my face and don't make marks or pressure on my nose. The color is perfect and they are really cute. They are a great value, well worth it. The cleaning cloth and bag to keep them in are a bonus. Very comfortable!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 13, 2026
M
Verified Purchase
Marzi
Pawtucket, US
★★★★★ 5
Great price and quality
Color: Beige Tortoise Frame / Brown Gradient Lens
Glasses are comfortable and look good. Great sun coverage
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Reviewed in the United States on June 10, 2026
A
Verified Purchase
A. Calhoun
Port Orchard, US
★★★★★ 5
Just buy them. There is nothing not to love!
Color: Beige Tortoise Frame / Brown Gradient Lens, Color: Beige Tortoise Frame / Brown Gradient Lens
I've had these for a year or two now and came back and ordered three more. I wear these daily because they are so comfortable and cute. A lot of sunglasses give me headaches either they are too tight or too heavy, these never do. They don't catch in your hair if you put them on your head. They don't slide down your nose when you sweat or move your head. The beige tortoiseshell is the prettiest most flattering color ever. I'm a dark winter and I struggle to find cute sunglasses other than black. So many are brown warm colors the beige violet tortoiseshell is very cool and flattering for my cool toned gals. I have a pretty normal size head and these are just a hint of oversized but in a good way. I have an oval face that leans long oval or slight heart and these are seriously flattering. I have so many photos in them they always look good. I'm going to try the all plastic version too but I honestly love the thin metal arms. Just buy these it's such a good buy and brand. I literally donated other pairs because I don't wear them anymore after discovering these. I bought obviously the beige tortoiseshell, black with gold, and the cherry. Debating on the green. My only wish is more color options. I'd love more silver arm options. Thanks WMP for these!
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Reviewed in the United States on June 9, 2026

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