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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 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.

16 item(s)
HTP1245
£2086 (£1738 Ex. VAT)
+
4 item(s)
HTP1583
£1982 (£1652 Ex. VAT)
+
HTP1246
£1547 (£1289 Ex. VAT)
42 item(s)
HTP83
£1480 (£1233 Ex. VAT)
+
3 item(s)
HTP230
£1272 (£1060 Ex. VAT)
+
28 item(s)
HTP256

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

£960 (£800 Ex. VAT)
+
14 item(s)
HTP257

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

£960 (£800 Ex. VAT)
+
34 item(s)
HTP255

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

£882 (£735 Ex. VAT)
+
138 item(s)
HTP1797

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

£772 (£643 Ex. VAT)
+
8 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.
£764 (£637 Ex. VAT)
+
HTP291

2" 45 degree elbow pump union, sold individually.

£751 (£626 Ex. VAT)
111 item(s)
HTP1581
£743 (£619 Ex. VAT)
+
31 item(s)
HTP547

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

£733 (£611 Ex. VAT)
+
98 item(s)
HTP1405

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

£700 (£583 Ex. VAT)
+
25 item(s)
HTP172

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

£677 (£564 Ex. VAT)
+
24 item(s)
HTP118
£636 (£530 Ex. VAT)
+