Part # 261177
Dimensions 16" L x 7" W x 10.5" D
Pentair Multiport Backwash Valve – 1.5" Threaded
Part No. 261177 | For D.E. and High-Rate Sand Filters
✅ Features & Benefits
✅ 1.5" side-mount threaded valve rated at 100 GPM
✅ Compatible with select Pentair D.E. and sand filters
✅ Molded ABS body with heavy-duty lever action handle
✅ Water-resistant rotor for smooth, long-lasting operation
✅ Sight glass included for easy backwash monitoring
✅ Available in multiple port styles (threaded or socket) and sizes (1.5" & 2")
✅ 100% factory tested for reliability
✅ Backed by a 1-year warranty
➡️ Durable Flow Control for D.E. & Sand Filters
➡️ The Pentair 261177 Multiport Valve provides reliable performance, easy operation, and proven durability — making it a trusted choice for maintaining your filter system.
⚠️ Tech Tips & Cautions
⚠️ Confirm filter model compatibility before ordering (used with Pentair D.E. filters)
⚠️ Rated for 100 GPM — ensure system flow does not exceed this rating
⚠️ Apply silicone-based lubricant to valve gaskets for best sealing performance
⚠️ Always shut off pump before turning valve handle to prevent damage
⚠️ Install sight glass upright for proper visibility during backwash cycles
I need parts for my filter valve. When I look at the filter parts breakdown, it gives me different choices. How do I know which one is the one I need?
Reply
In order to locate the correct parts we will need to know the model number of the filter valve. Two identical filters can have two different valves. Typically the valve model will be located on the label of the valve. If there is no model number on the valve, you can try to see if there are any part numbers on the valve itself. Once you've located you valve model you can check out our >Filter Valve Parts.
Reply
Will this valve fit the Nautilus NS-36 stainless steel filter?
Reply
Hi Antonio, Yes this multiport valve does work on the Nautilus NS-36 stainless steel filter.
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So, maybe. I only need to change the top of the valve instead the whole valve..
Do you have the top of the 261177 Multiport? If yes, please stated price & shipping conditions to Puerto Rico.
Reply
Hi Ramon, yes we do carry the Top Half of the 261177 Valve if you go this route you will also need the 261177 Spider Gasket.
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I am looking for the top part of a valve. It is the part that has the different options on it like backwash and rinse. It is for a Pentair 8 position multi-port valve and has a label # 96734200.
Reply
The top lid part number for your valve is part number 4659-25d and the handle is 4659-21c. These do not come together pre assembled unfortunately.
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My multi port valve is leaking, and I think I need to replace the spider gasket. What is the part # for the spider gasket for this valve? Thanks!
Reply
Less than 1 hr
Large crescent wrench to loosen the old unions
I unscrewed the two unions attached to the tank. Instead of cutting the existing pipe, I managed to unscrew the valve assembly off. Instead of using teflon tape, which cracked the old valve assembly, I used the liquid teflon, which sealed everything perfectly without putting stress on the valve assembly. After screwing the valve assembly onto the existing pipe, i inserted the assembly into the tank and hand-screwed the two unions. It all worked (thankfully) without a hitch.
$1,299.00
$1,339.00
The Most Helpful Review
1 0
(5 out of 5 stars)
Reviewed By: Inyo Customer ()
Perfect fit got my filter back up and running
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The Most Recent Reviews
1 0
(5 out of 5 stars) Pool parts
Reviewed By: Gwen D. from Barnegat, NJ ()
It was great, got the connections and it works like brand new!
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(5 out of 5 stars) Right product, right price, delivered right on time
Reviewed By: Thomas P. from Athens, OH ()
Pros: easy to install
I'm a new customer who will be coming back. It is the valve I needed, at the right price, and delivered right on time.
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(5 out of 5 stars) Perfect match to old valve assy.
Reviewed By: Thomas P. from Southington, CT ()
Pros: great service
Needed help finding the right multi-port valve assy. to replace my old one. INYOpools researched and found the right valve - great job.
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(5 out of 5 stars) valve
Reviewed By: Pam W from Sidney, OH ()
Pros: fit perfectly on a 9 year old filter
70.00 less than my local pool supply store. Delivered quickly
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