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SPF Waterway 400 5990B 2 1/2In Union Nut W/ 2Ins Tailpiece P15466657SPF-WW4005990B https://cdnimages.opentip.com/full/SPF/SPF-WW4005990B.jpg Waterway 400 5990B 2 1/2In Union Nut W/ 2Ins Tailpiece Manufacturer Part Number: 400-5990B2 1/2\" Union NutW/ 2\"S Tailpiece 15466657 0.5100lbs 0.00 0.00 0.00
Waterway Plastics
8.4500 2027-07-27 38 In Stock
customer review - by , November 11, 2025
4/ 5stars
O-ring missing from unit. Other than that, great.
customer review - by , October 10, 2025
5/ 5stars
Perfect fit
customer review - by , June 6, 2025
5/ 5stars
Note that this does not work on a Harris above ground pump model.
customer review - by , November 11, 2024
5/ 5stars
Someone posted it fit there Bamp;D pump so I took a chance cause, as they posted I did not want to pay 50 through Bamp;D. It fits using the male pentair adaptor but the male threads / ID is considerably smaller than a 1 1/2" MIP to pvc internal diameter. Just posting beware, does not fit my Bamp;D pump.
customer review - by , December 12, 2023
5/ 5stars
Fits well with salt cell
customer review - by , October 10, 2023
5/ 5stars
Did not fit.
customer review - by , April 4, 2023
4/ 5stars
No o-ring was with this union... Quick delivery but no o-ring. Be nice to get the $5.00 o-ring with it. It shows one in the picture. Must be someone left it out at the factory.
customer review - by , February 2, 2023
5/ 5stars
Part fit perfect
customer review - by , September 9, 2022
5/ 5stars
good price
customer review - by , August 8, 2022
5/ 5stars
Fast delivery. Arrived before schedule time. Worked great

Waterway 400-5990B 2 1/2In Union Nut W/ 2Ins Tailpiece, Price/EA

stars Rating 5 | 19 reviews
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SKU: SPF-WW4005990B
Price: $8.45
Quantity:
38 In Stock
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Product Description

Price is for EA.

Manufacturer Part Number: 400-5990B

2 1/2" Union Nut
W/ 2"S Tailpiece

warning tips WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information, go to www.p65warnings.ca.gov.

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Customer Reviews
5 stars
16
4 stars
3
3 stars
0
2 stars
0
1 stars
0
By Auria McAlicher
Date: November 20, 2025
O-ring missing from unit. Other than that, great.
Rating: 4 stars [4 of 5 Stars!]
By chris
Date: October 12, 2025
Perfect fit
Rating: 5 stars [5 of 5 Stars!]
By Emily
Date: June 06, 2025
Note that this does not work on a Harris above ground pump model.
Rating: 5 stars [5 of 5 Stars!]
By CMV
Date: November 24, 2024
Someone posted it fit there Bamp;D pump so I took a chance cause, as they posted I did not want to pay 50 through Bamp;D. It fits using the male pentair adaptor but the male threads / ID is considerably smaller than a 1 1/2" MIP to pvc internal diameter. Just posting beware, does not fit my Bamp;D pump.
Rating: 5 stars [5 of 5 Stars!]
By jason
Date: December 31, 2023
Fits well with salt cell
Rating: 5 stars [5 of 5 Stars!]
By Larry D.
Date: October 27, 2023
Did not fit.
Rating: 5 stars [5 of 5 Stars!]
Items 1 - 6 of 17 reviews
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