SKU: 23919805571

PENTAIR IN-LINE FEEDER AUTOMTIC CHLORINE - R171218

$102.83 $114.25
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Ships within 48 hours · Estimated delivery Aug 7 - Aug 12

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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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4.1 ★★★★★
Based on 16 reviews
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R
Verified Purchase
Ryan
Natrona Heights, US
★★★★★ 5
The BEST braw ever!
Size: 36D, Color: Nude
This braw was the best braw I’ve ever had in my life! I’ll definitely buy more!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 9, 2026
D
Discerning
Lake Worth, US
★★★★★ 5
This one is a keeper…
Size: 36D, Color: Nude
Bra shopping is truly one of my least favorite things to do, and it is always so frustrating to me. Online bra shopping tends to be even worse, so I had little hope for this bra but took a chance anyway. I was pleasantly surprised by how much I liked it! A true test for me is whether or not I notice I’m wearing it. I’ve worn it off and on for several days and I totally forget about it. Having nurses two babies and approaching my 40s, my girls need a lot of support and this bra delivered. I thankfully discovered years ago that if you have deflated mom boobs, an unlined cup is the best way to take what you have and give it shape. This one does just that. I have very mixed feelings on the lace though. On the one hand, it is sexy and feminine and I don’t find that in bras very much anymore (at least not ones that provide the kind of lift and support that I require). However, the lace is very noticeable through a shirt. I really can only wear this bra with a thick top or sweater. Otherwise, it’s just too noticeable and I’m not comfortable with that. Wearing a cami underneath a top helps slightly though. Overall, I’m glad I have this bra and I’ll be ordering another color. It feels well made, the material is nice, and it gives my bust a shapely (and youthful 😭) appearance. I wore it all day in 90+ heat at Magic Kingdom and it didn’t bother me at all, so it definitely qualifies as lightweight and comfortable in my book. I took a stab at a size and the 36D feels right. I *maybe* could have gotten a 34 but the 36 doesn’t feel loose on the tightest loops. On occasion, depending on the brand, I can be either a D or DD. I think this is worth trying and looks more expensive than it really is!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 12, 2026
K
Kate
Massapequa, US
★★★★★ 5
Gorgeous Bra, But My Chest Declined the Opportunity
Size: 40C, Color: Black, Size: 40C, Color: Black
This bra is genuinely beautiful and very well made. The fabric, stitching, and overall construction felt much more expensive than I expected. Unfortunately, my body once again reminded me that I am apparently not built according to standard human engineering specs. Every few years I convince myself, “Surely this time I am a normal-sized woman who can wear regular bras.” Then I order one designed for actual flesh-bearing individuals and reality humbles me immediately. The cups stood there optimistically waiting to be filled while my chest contributed little to the project. The straps also kept sliding off my narrow shoulders like they were trying to escape the situation entirely. None of this is the bra’s fault. The fabric is soft, silky, and looks like money. It's just as pretty as the photos. The straps appear as though they could support a lot for a long time. The bra did its job. My body simply refused to participate. If you have average proportions and shoulders that can support standard straps, this is probably a fantastic purchase. I, however, must return to my specialized tiny-person undergarments and accept my fate.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 22, 2026
C
Verified Purchase
cisekm
Lake Worth, US
★★★★★ 3
I really like this bra, but...
The bra fir great and I wish I could keep it. The big downfall is the lace and the middle seam. Both show thruogh any shirt material so you can't ear it under anything without the bra showing through as bumpy. I'm returing it for that reason along.
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Reviewed in the United States on May 15, 2026
J
Verified Purchase
Jenn NYC
Cuba, US
★★★★★ 5
Beautiful and best cross chest/ waist bag!
Size: M, Color: Brown
Beautiful vegan leather in brown, with a beautifully embroidered adjustable strap.. Comfortable , size Medium is rperfect! Roomy and has an inside zippered pocket. Perfect cross chest bag, for Mom's who are a toting a toddler and other stuff
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 14, 2026

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