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Unions

Welcome to the pipe unions section of our store.


We stock all sizes of spa pipe plumbing unions such as socket unions, pump unions 1 inch, 1.5 inch, 2 inch and 2.5 inch along with all other types and sizes designed to fit Aqua-flo, Hydroair, LX and Waterway hot tub pumps.


Here is a quick guide to the approximate outside thread diameters of pump connections,


1.5" unions: 63 mm

2" unions: 78 mm

2.5" unions: 93 mm

1" Hydroair Union Complete - Genesis Air Blowers

Part Number: GAB-UNION

£5.28
In stock, immediate despatch

Hydroair union nut and tail piece, fits all their Genesis and perseus range of air blowers.


1.5" Heater Union Tail Piece

Part Number: 417-4090

£2.40
In stock, immediate despatch

1.5" Split Heater Union Nut

Part Number: K0454

£5.28
In stock, immediate despatch

2" Balboa Heater Union Collar & Tail Piece

Part Number: PL-10400

£9.43
In stock, immediate despatch

2" Heater Union Tail Piece

Part Number: 417-5050

£3.25
In stock, immediate despatch

2" Split Heater Union Nut

Part Number: K0452

£7.25
In stock, immediate despatch

2" Split Pump Union Nut

Part Number: K0453

£9.25
In stock, immediate despatch

Perfect for repairing a cracked spa pump union nut, fits all 2" pump wet end connections.


2" to 1.5" Threaded Union Adapter

Part Number: 100130

£14.73
In stock, immediate despatch

Threads onto a 1.5" pump wet end and provides a 2" union connection.


3" Saratoga & Jacuzzi Heater Union Complete

Part Number: PL-10415

£25.80
In stock, immediate despatch

Pump Union 1"x 1" Socket

Part Number: PU-S-1x1

£4.49
In stock, immediate despatch

1" pump union found on spas and hot tubs, fits Waterway Tiny Might pumps and others. Sold individually.


Pump Union 1.5"x 1.5" Socket

Part Number: PU-S-1.5x1.5

£5.20
In stock, immediate despatch

1.5" pump union found on spas and hot tubs, fits most brands of pump. sold individually.


Pump Union 2"x 2" Socket

Part Number: PU-S-2x2

£6.48
In stock, immediate despatch

The most common 2" pump union found on spas and hot tubs, sold individually.


Pump Union 2.5" x 2" Socket

Part Number: PU-S-2.5x2

£7.24
In stock, immediate despatch

2.5" pump union for the larger Waterway wet end suctions, sold individually.


Pump Union 2.5" x 2.5" Socket

Part Number: PU-S-2.5x2.5

£10.71
In stock, immediate despatch

2.5" pump union for the larger Waterway wet end suctions, sold individually.


Waterway 2" 45 Degree Male Pump Union

Part Number: 400-4300

£7.90
In stock, immediate despatch

2" 45 degree elbow pump union, sold individually.


Waterway 2" 90 Degree Swept Pump Union

Part Number: 400-5800

£7.90
In stock, immediate despatch

2" 90 degree swept elbow pump union, sold individually.

 
 
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