Hayward Sand Filter with Top Mount Valve 18" Tank - W3S180T



Part # W3S180T

By Hayward Pool Products

  5 Average  



Part # W3S180T

Warranty 1 Year

Alternate Part #'s HAYW3S180T

Product Description

Inyo Recommended Filters

Hayward sand filters are the very latest in pool filter technology. Molded of durable, corrosion-proof polymeric material, they feature attractive, unitized tank construction for years of trouble-free operation with only minimal care. Pro Series sets a new standard for performance, value and dependability. 


  • In-ground pools of all types and sizes
  • In-ground spas--(residential or commercial)
  • Water features--(fish ponds, fountains, water gardens)


  • Flange clamp design allows 360 degree rotation of valve to simplify plumbing
  • Integral top diffuser ensures even distribution of water over the top of the sand media bed. Full-size internal piping provides smooth, free-flowing performance
  • Unitized, corrosion-proof filter tank molded of rugged, colorfast polymeric material for dependable, all-weather performance
  • 6-position Hayward Vari-Flo control valve with easy-to-use lever-action handle lets you dial any of the 6 valve/filter functions. Integral sight glass lets you see when backwash cycle is completed
  • Efficient, multi-lateral underdrain assembly, with 360 degree slotted, self-cleaning laterals, gives totally balanced flow and backwashing
  • Integral molded drain plug for easy draining of tank, without the loss of sand 

Click here for more Hayward Filters

Product Specifications

Plumbing Size:
1 1/2 in.
150 lbs.
Flow Rating:
35 GPM
Filtration Area:
1.75 sq. ft.
Valve Location:
Valve Type:
Turnover 8 Hrs.:
16800 gal.
Turnover 10 Hrs.:
21000 gal.
18-1/2 in.
35 in.
Sand Required:
150 lbs.

?     Asked on 5/23/2022by Nicole A Jarzambek

Hi, We have a really old STA-RITE Hi-Rate sand filer model T-170BP-1. It has cracked and will not work.. I need to know what the best/ best cost replacement would be? It is for an above ground pool..

A  Answered on 5/23/2022 by InyoPools Product Specialist Craig C.

Hello Nicole.  The Sta-Rite Ii-Rate Sand Filter model T-170BP-1 has a filtration area of 1.8 sq ft, an Optimal Flow Rate of 24 GPM, requires 150 lbs. of sand, and has 1 1/2" plumbing size.  The Hayward Sand Filter with Top Mount Valve 18" Tank - W3S180T has a filtration area of 1.75 sq ft, a Flow Rating of 35 GPM, requires 150 lbs. of sand, and has 1 1/2" plumbing size.  The Hayward W3S180T would be an excellent cost-effective replacement for the Sta-Rite T-107BP-1.  Attached please find a complete listing of sand filters available through INYO Pools for additional reference.  Sand Filters

?     Asked on 5/16/2020by Tim G, Saxon

all I need is the filter tank and lateral assembly with center pipe,Can I purchase these to parts only?

A  Answered on 1/4/2021 by InyoPools Product Specialist Hector F.

Hi Tim, yes you can purchase the tank body and lateral assembly separately. However, it may be more cost-efficient to purchase an entirely new filter. 

?     Asked on 5/8/2020by Ron

What type of sand is recommended for this filter?

A  Answered on 5/8/2020 by InyoPools Product Specialist Patrick P.

Hi Ron, This will require #20 silica sand also called pool filter sand.

?     Asked on 6/5/2019by Inyo Visitor

What is the cost of 1.5 h.p. pump & 18" S180T Sand filter or product $

A  Answered on 6/8/2019 by InyoPools Product Specialist Michelle B.

Hello, This will be the product you are looking for. http://www.inyopools.com/Products/02200001005546.htmThe cost is $507.99

?     Asked on 6/2/2019by Natalie Boey

The flange around the top of our sand filter broke off. Is it possible to get a replacement shell for our Advantage Manufacturing High Pressure Sand Filter? it holds 150 lbs. of sand, but we can not read the label for what make or model style it is. The tank is black cylindrical shape. Thank you

A  Answered on 10/15/2019 by InyoPools Product Specialist Steve M.

Natalie, we apologize for the inconvenience, however, we have been unable to obtain an answer to this question from the manufacturer. We suggest you try calling them and pushing them to see if they can provide any insight on this. Hayward can be reached by calling 800.429.9273.

?     Asked on 3/26/2019by Amber

Will the S180T work on an above ground pool, the page says in-ground? It is an 18ft round, 21gpm, 10,000gal. I have a 1hp hayward pump with 1.5" hoses (1 inlet, 1 outlet).

A  Answered on 3/27/2019 by InyoPools Product Specialist Lennox H.

Hi, Amber. Yes, the S180T model sand filter will also work with an above ground pool application. 

?     Asked on 7/4/2017by James

I'm trying to find a pressure release valve on here. The skimmer basket looks like a river, instead of it being fully pressurized, I'm thinking it's because there's air in there. Am I right with that assumption? Any ideas on where to start to fix that?

A  Answered on 7/4/2017 by InyoPools Product Specialist Alex V.

James, The S180T does not have an air release valve. To lower the pressure, you will need to backwash the filter. 

?     Asked on 6/3/2017by tom van wort

I cant find the proper spider gasket for my sand filter could you please tell me which one I need thanks s180t

A  Answered on 6/4/2017 by InyoPools Product Specialist Patrick P.

Hi Tom, the spider gasket for the Hayward S180T is only sold glued into the diverter, you cannot get the spider gasket by itself. Here is a link to the Hayward S180T Diverter with Spider Gasket Glued In that you will require. Also here is a Photo Showing the Spider Gasket Glued Into the Diverter.

?     Asked on 5/24/2017by Shane

Looking for the correct filter pairing for a new pump. Recently purchased the Hayward Power-Flo LX, SP1580X15. It shows a 70GPM flow rate, I have an 18 foot round 10,000gl above ground. Any suggestions?

A  Answered on 5/24/2017 by InyoPools Product Specialist Patrick P.

Hi Shane for a Hayward SP1580X15 Power-Flo LX pump, we would suggest the Hayward S220T 22" Sand Filter.

?     Asked on 5/18/2017by Rick

I have 12,723 gallon in ground pool with 3/4 hp Hayward priming pump with 1 1/2 piping. Need to replace the filter and top which size do I need. Hayward model number?

A  Answered on 5/18/2017 by InyoPools Product Specialist Patrick P.

Hi Rick, I would suggest the Hayward S210T Sand Filter for your set up.

?     Asked on 4/14/2017by John

Sorry about so many questions, but I am trying to put together my pool package....Would this sand filter suffice for 12000 gallon pool, 1.5hp purline pump, 12 ft. head? The specs show about 6 hour turnaround.....Or should I reduce my pump to 1hp?

A  Answered on 4/17/2017 by InyoPools Product Specialist Lennox H.

Hi, John. This filter is adequate for a 12,000 gallon pool. However with 12 feet of head which seem to quite low a 1.5 HP pump will be too much if it's being used for normal filtration. Reducing the pump's horsepower would be a start. You do not want your flow rate to exceed 35 GPM using this S180T filter.

?     Asked on 9/17/2016by Ricky Hoy

I have a model # s180t and the label on top of the valve is getting faded and somewhat unreadable, can I buy a new label anywhere?

A  Answered on 9/19/2016 by InyoPools Product Specialist Stacey M.

Hello Ricky, I apologize, but that piece only comes as a Key,cover And Handle Assembly (spx0714ba) to get the label.

?     Asked on 8/30/2016by Inyo Visitor

I had a Hayward S190TSCPES that developed a split in the seam. While under mfg warranty, the dealer replaced with a S180T for a 27' round pool holding 17000 gallons. Since the replacement, I've noticed a decreased flow and more sediment on the bottom of the pool than I did last year. Is this the correct model I have Hayward SP1580X15FP with 1.5" piping.

A  Answered on 8/31/2016 by InyoPools Product Specialist Stacey M.

Hello, this is correct filter, you might want to call Hayward 800-657-2287 to troubleshoot, you might have a lateral problem that is kicking sand in your pool.

?     Asked on 7/27/2016by Inyo Visitor

We have a 2.5 hp pump will this sand filter work for us. The pump is oversized for our pool.

A  Answered on 7/28/2016 by InyoPools Product Specialist Scott W.

It's going to depend on your total resistance in feet, but most likely that is going to be too small of a filter since it's max flow rate it can handle is 35 gpm.

?     Asked on 7/26/2016by Jason Petty

I have a proline 22 that holds 150 lbs of sand can I use this filter or do I need to stay with the 22

A  Answered on 7/31/2016 by InyoPools Product Specialist Lennox H.

Hi Jason, The S220T will allow a better level of filtration than your older filter.

?     Asked on 7/4/2016by brian

is the 18 in. sand filter for a above ground pool

A  Answered on 7/8/2016 by InyoPools Product Specialist Lennox H.

Hi Brian, This 18" Hayward Sand filter is adequate for an above ground pool up to 16,800 gallons with a run time of 8 hours and with a  pump that has a flow rate of 35 gpm.

?     Asked on 6/13/2016by anthonym

What size filter should I need for a 27 ft round pool 48" deep. I have a 1.5 hp pump.

A  Answered on 6/14/2016 by InyoPools Product Specialist Patrick P.

You could get by with this 18" Sand Filter but I would suggest the 21" Hayward Sand Filter as it has larger filtering capacity meaning more time between cleaning your filter and longer life for your 1.5 HP pump.

?     Asked on 6/1/2016by nora jones

i I have a hayward sand filter. model no. s180T, the canster has a small crack in the seam, leaking. i just want to replace the canster as everything else is working fine. Can I just order that?

A  Answered on 6/8/2016 by InyoPools Product Specialist Lennox H.

Hi Nora, You can not purchase just the tank alone,  the Tank - SX180AA2 comes with the Skirt, Drain and Lateral Assembly.

?     Asked on 5/22/2016by Kristi

If the pool guys says to order a new sand filter S180T (the kit)…does this $267 include everything I need for a replacement? Thanks

A  Answered on 5/22/2016 by InyoPools Product Specialist Patrick P.

Yes this would be everything you need for replacement minus the sand and any plumbing supplies like pipe fittings and glue.

?     Asked on 5/19/2016by Inyo Visitor

I have a 15000 gallon in ground pool with three quarter horse power Hayward super pump will the s180t sand filter be suitable

A  Answered on 5/22/2016 by InyoPools Product Specialist Lennox H.

HI, This filter can work if the flow rate of the pump is 35 gpm or less. You can fin out by Calculating your pool's Feet of Head.

?     Asked on 4/12/2016by Steven

It shows that the height of this sand filter is 35 inches, is that including the base?

A  Answered on 4/13/2016 by InyoPools Product Specialist Robert M.

Steven - The height of 35" includes the base.

?     Asked on 7/2/2015by Snow

My pump is Hayward SP1580X15 Power-Flo LX Series 1-1/2-Horsepower I'm looking to replace my current sand filter. I would like to get a sand filter that works the best with my current pump. If needed to improve the filtration I can replace the pump as well. Also do they make anything for above ground that can connect to the pump discharge inside the pool that will keep the dirt on the bottom of the pool suspended so the filter can remove? I would like to cut down on how often I have to vaccum.

A  Answered on 7/5/2015 by InyoPools Product Specialist Lennox H.

Hi Snow, You can improve your filtration without replacing the pump. The Sand Filter W/Top Mount Valve 22" Tank (S220T) would be a good size filter to maximize your filtration. Unfortunately vacuuming would be the only way to remove dirt off the bottom of your pool, you can choose from our selection of Above Ground Pool Cleaners to cut down on how often you will have to vacuum.

?     Asked on 6/30/2015by Snow

What is the proper size sand filter and pump HP for an 18 foot round above ground poool

A  Answered on 7/1/2015 by InyoPools Product Specialist Lennox H.

Hi Snow, Your filter size is based on the size pump you have and the pump is determine by your size pool and feet of head. If you provide us with your pump size I can confirm if this filter will work for you.

?     Asked on 5/28/2015by Joe

Can an inline chlorine be used with the S180T.

A  Answered on 5/28/2015 by InyoPools Product Specialist Patrick P.

Hi Joe, Yes an inliine chlorinator can be used with the S180T filter. You would just want to make sure you plumb the chlorinator after the filter.

?     Asked on 5/20/2015by Rich

My pool is a 24 ft. dia above ground (13,500 gallons) and I'm using a 1 hp motor on my pump with 1 1/2 inch pvc plumbing. Will a Hayward #S180T be a good selection to replace my worn out 20 year old sand filter? If not, what model would you recommend? Thank you.

A  Answered on 5/20/2015 by InyoPools Product Specialist Patrick P.

Hi Rich, The Hayward S180T would be a great replacement sand filter for your sized pool. Also the S180T pairs nicely with a 1 hp pump.

?     Asked on 3/1/2012by Guest

How often do I have to replace the sand in my filter? What is normal operating pressure?

A  Answered on 3/1/2012 by InyoPools Product Specialist Patrick P.

On a "fresh start-up" a filter would operate anywhere between 10-20 psi. As a general rule of thumb you only want to backwash when the pressure increases 8-10 psi. You want to make certain that the pump is being turned off whenever you move the handle on the valve. Once backwashing is complete (3-5 minutes), you can switch to the rinse option to re-settle the sand bed. Sand will typically last 5-7 years. Premature backwashing will wear down the size of the sand which will cause difficulties such as cloudy water and higher operating pressures.

?     Asked on 1/27/2012by Guest

When should I change the sand in my filter?

A  Answered on 1/27/2012 by InyoPools Product Specialist Patrick P.

You should change the sand in your filter every 5-7 years. You can generally tell that it is time if your pool water is not as clear as it normally is or when you notice the interval between backwashes is shorter. You can use > this guide to walk you through it.

?     Asked on 6/8/2006by Guest

How much sand is needed for this filter?

A  Answered on 6/8/2006 by InyoPools Product Specialist Patrick P.

150 lbs.


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