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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.

HTP547
£712 (£593 Ex. VAT)
33 item(s)
+
HTP1581
£721 (£601 Ex. VAT)
134 item(s)
+
HTP674
£197 (£164 Ex. VAT)
85 item(s)
+
HTP552
£610 (£508 Ex. VAT)
39 item(s)
+
HTP83
£1436 (£1197 Ex. VAT)
26 item(s)
+
HTP230
£1235 (£1029 Ex. VAT)
9 item(s)
+
HTP285
£354 (£295 Ex. VAT)
61 item(s)
+
HTP117
£742 (£618 Ex. VAT)
2" HA440 Pump Union -2%
HTP118
£618 (£515 Ex. VAT) £525
47 item(s)
+
HTP252
£272 (£227 Ex. VAT)
134 item(s)
+
HTP1583
£1925 (£1604 Ex. VAT)
5 item(s)
+
HTP251
£329 (£274 Ex. VAT)
128 item(s)
+
HTP1405
£679 (£566 Ex. VAT)
30 item(s)
+
HTP1797
£749 (£624 Ex. VAT)
97 item(s)
+
HTP551
£547 (£456 Ex. VAT) £457
45 item(s)
+
HTP1246
£1501 (£1251 Ex. VAT)
HTP1245
£2024 (£1687 Ex. VAT)
18 item(s)
+
HTP414
£457 (£381 Ex. VAT)
12 item(s)
+
HTP311
£569 (£474 Ex. VAT)
11 item(s)
+
HTP172
£658 (£548 Ex. VAT)
58 item(s)
+
HTP256
£932 (£777 Ex. VAT)
9 item(s)
+
HTP257
£932 (£777 Ex. VAT)
11 item(s)
+
HTP291
£730 (£608 Ex. VAT)
8 item(s)
+
HTP255
£857 (£714 Ex. VAT)
49 item(s)
+