By Spa Parts Plus



Part # 9175-03

Manufacturer Code 400-5570B

Dimensions 3.25" L x 3.25" W x 2" D

Alternate Part #'s 0602-20, 060220, 20278, 21023-000-000, 400-5570, 4005570, 892701166, 89-270-1166, WW4005570B

Product Description

This is a standard 2" buttress threaded half union. The 
2" buttress threads actually measure about 3-1/16". This has a 2" slip glue in fitting for use with 2" PVC pipe, which measures about 2-3/8" outside diameter. 

The replacement o-ring for this union is part number 4800-23.


?     Asked on 1/18/2012by Guest

Do these come in pairs or singles?

A  Answered on 1/18/2012 by InyoPools Product Specialist Patrick P.

These are by the single.

?     Asked on 9/24/2017by Norman Sannes

Is this the correct Union connection to a Jacuzzi Magnum pump?

A  Answered on 9/25/2017 by InyoPools Product Specialist Lennox H.

Hi, Norman Sannes. These unions will fit the Jacuzzi Magnum Pump. 

?     Asked on 5/14/2018by Steve

Can you buy just the nut?

A  Answered on 5/14/2018 by InyoPools Product Specialist Alex V.

Steve, I do not show that we carry the union nut by itself. 

?     Asked on 7/13/2018by Rosemary Loveless

Will this fit a S1LR9-6-S1 side discharge?

A  Answered on 7/13/2018 by InyoPools Product Specialist Lennox H.

Hi, Rosemary. Unfortunately, it will not. You will have to use Part # B0602-15 (suction side) and the Interconnect Assembly - 42363408R000 (discharge side).

?     Asked on 6/12/2019by Josh

Would this fit on part SPX1580AAP or SPX1580AAT? And would it further connect to Union Heater Half 0611-20?

A  Answered on 10/2/2019 by Industry Professional

No, Hayward uses a finer thread & pitch than most in the industry & the tail pc portion will not work with the heater split nut. Pump union # SP1500UNPAK2 ( 89-150-1105 ) & heater union tail pc., 89-238-1020


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