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Unions

Unions

Welcome to the pipe unions section of our store.

We stock all sizes of spa pipe plumbing unions such as heater unions, 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 OD, 2" unions: 78 mm OD, 2.5" unions: 93 mm OD.
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ESPA Pump Union (WIPER3)
ESPA Pump Union (WIPER3)
18 item(s)
HTP1245
£2024 (£1687 Ex. VAT)
+ −
Add to cart
2" Socket Union (with Female Thread)
2" Socket Union (with Female Thread)
4 item(s)
HTP1583
£1925 (£1604 Ex. VAT)
+ −
Add to cart
ESPA Pump Union (WIPER0)
ESPA Pump Union (WIPER0)
HTP1246
£1501 (£1251 Ex. VAT)
Out of stock
1.5" Socket Union
1.5" Socket Union
42 item(s)
HTP83
£1436 (£1197 Ex. VAT)
+ −
Add to cart
1.5" Socket Union (M Thread to F Socket)
1.5" Socket Union (M Thread to F Socket)
5 item(s)
HTP230
£1235 (£1029 Ex. VAT)
+ −
Add to cart
2.5"_Pump_Union_With_2"_Socket
Pump Union 2.5" x 2" Socket
28 item(s)
HTP256

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

£932 (£777 Ex. VAT)
+ −
Add to cart
2.5_Inch_Spa_Pump_Union
Pump Union 2.5" x 2.5" Socket
14 item(s)
HTP257

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

£932 (£777 Ex. VAT)
+ −
Add to cart
Waterway_2"_90_Degree_Swept_Pump_Union
Waterway 2" 90 Degree Swept Pump Union
40 item(s)
HTP255

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

£857 (£714 Ex. VAT)
+ −
Add to cart
2" to 1.5" Threaded Union Adapter
2" to 1.5" Threaded Union Adapter
140 item(s)
HTP1797

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

£749 (£624 Ex. VAT)
+ −
Add to cart
Balboa_Heater_Union_Complete
2" Balboa Heater Union Collar & Tail Piece
18 item(s)
HTP117
2" Balboa Heater Union Collar & Tail Piece These are complete unions for Balboa Heaters.   Supplied With ~ 2" White split union collar with screws ~ 2" Plumbing tail piece for gluing onto 2" pipework. (2" pipe - 60mm) ~ O' Ring gasket   Need Help? If you need any advice on spa or hot tub plumbing or heating parts please do not hesitate in giving our office a call on 01342 717982 or by emailing us , our team have years of experience in the repair and manufacture of spas and will be more tha happy to help.
£742 (£618 Ex. VAT)
+ −
Add to cart
Waterway_2"_45_Degree_Male_Pump_Union
Waterway 2" 45 Degree Male Pump Union
HTP291

2" 45 degree elbow pump union, sold individually.

£730 (£608 Ex. VAT)
Out of stock
1" Socket Union
1" Socket Union
118 item(s)
HTP1581
£721 (£601 Ex. VAT)
+ −
Add to cart
1"_Hydroair_Union_Complete
1" Hydroair Union Complete - Genesis Air Blowers
31 item(s)
HTP547

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

£712 (£593 Ex. VAT)
+ −
Add to cart
2"_Split_Pump_Union_Nut
2" Split Pump Union Nut
134 item(s)
HTP1405

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

£679 (£566 Ex. VAT)
+ −
Add to cart
2-Inch_Spa_Pump_Union
Pump Union 2"x 2" Socket
30 item(s)
HTP172

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

£658 (£548 Ex. VAT)
+ −
Add to cart
2" HA440 Pump Union -2%
2" HA440 Pump Union
41 item(s)
HTP118
£618 (£515 Ex. VAT) £525
+ −
Add to cart
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