By Hayward Pool Products



Part # 4802-09B

Manufacturer Code SX180HG

Dimensions 1-3/16" x 7/8"

Alternate Part #'s 31-150-1378, HAY-051-2194, HAYSX180HG, SX180HG

Product Description

Drain cap and gasket kit for the following Hayward pool filters:   Sand Master, Swim Pro, Pro Series Side Mount sand filters, Pro Series Top Mount sand filters, and E- Series. This cap is located at the base of the filter tank.

The drain cap is available as part of this kit only and is not sold separately.  The SX180G gasket can be purchased separately if the drain cap is not needed.


?     Asked on 5/2/2015by Jayne

How do I replace thew drain cap and gasket on a top mount sand filter?

A  Answered on 5/4/2015 by InyoPools Product Specialist Andy O.

Jayne- Replacing the Cap & Gasket kit 4802-09B  on you sand filter you would need to simply unscrew the old one, and quickly screw this one on.

?     Asked on 10/19/2015by Keith Joslyn

I have a cap (S-180-H) and it leaks all the time,do you have any? It also has no gasket. Can you help me.

A  Answered on 10/20/2015 by InyoPools Product Specialist Lennox H.

Hi Keith, Because you don't have a gasket that's why it leaks. I would recommend getting the Drain Cap Gasket (G-382), that will solve your problem.

?     Asked on 12/31/2015by John

My cap was replaced last fall by a pool company that is no longer in business. The cap leaked from day one and it did not have a gasket. The cap cracked and blew out the front of the cap. Now the threads are stripped and a new cap will not seal. What do i do?

A  Answered on 1/6/2016 by InyoPools Product Specialist Megan C.

John, If the threads are stripped there may be nothing else to do short of replacing the tank. I would recommend calling Hayward. You can reach them at 888-429-9273.

?     Asked on 5/31/2016by Lisa

I called Blue Water as I'm looking for a filter drain cap for my Sandman filter.  They only have the whole drain assembly available (#NEP2123) and shared your number.  I see several caps, but don't know if they're the right one for my filter.

A  Answered on 6/3/2016 by InyoPools Product Specialist Lennox H.

Hi Lisa, Unfortunately, just the cap is not available for that filter. You will have to replace the entire Drain Plug Assembly - NEP2123

?     Asked on 6/6/2016by Jake

Why does a drain cap cost so much? It's a plastic cap.

A  Answered on 6/7/2016 by InyoPools Product Specialist Alan M.

Hello Jake, the manufacturer sets a specific price point on parts. We apologize if you feel the pricing is to high. Here is a $5 off your order BDFHAEFVD code you can enter on the view your cart screen.


Est. Repair Time

Less than 1 hr

Tools Needed


1     0

Dead in the Water!

Written on 4/28/2022 by Guest

This is a helpful tip to all pool owners. This cap that I purchased may seem like a small item but without it, your pool will not run. I tightened mine a bit too tight and cracked it. Realizing that I could no longer run my pool filtration system, I came up with a great solution. Those parts that can stop the pool from circulating water if damaged are critical! So, I now purchase 2 from Inyo Pools when I buy. That way, I always can keep my pool running. This includes parts for the chlorinator, pump gaskets and gauges

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 (Average 4.67  out of 5 stars)
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