• Service & Repair
  • Hot Tubs for SaleCOMING SOON
  • Shop By Hot Tub Brand
  • Shop By Parts Brand
  • Our blog
  • Contact us
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
£678 (£565 Ex. VAT)
43 item(s)
+
HTP1581
£686 (£572 Ex. VAT)
HTP674
£187 (£156 Ex. VAT)
15 item(s)
+
HTP552
£581 (£484 Ex. VAT)
16 item(s)
+
HTP83
£1368 (£1140 Ex. VAT)
HTP230
£1176 (£980 Ex. VAT)
24 item(s)
+
HTP1582
£1651 (£1376 Ex. VAT)
HTP285
£337 (£281 Ex. VAT)
1 item(s)
+
HTP117
£707 (£589 Ex. VAT)
2" HA440 Pump Union -7%
HTP118
£588 (£490 Ex. VAT) £525
14 item(s)
+
HTP252
£259 (£216 Ex. VAT)
HTP334
£1339 (£1116 Ex. VAT)
22 item(s)
+
HTP1583
£1834 (£1528 Ex. VAT)
4 item(s)
+
HTP251
£313 (£261 Ex. VAT)
34 item(s)
+
HTP1405
£647 (£539 Ex. VAT)
HTP1797
£713 (£594 Ex. VAT)
176 item(s)
+
50mm Hydroair Pump Union -5%
HTP551
£521 (£434 Ex. VAT) £457
HTP1246
£1429 (£1191 Ex. VAT)
HTP1245
£1928 (£1607 Ex. VAT)
24 item(s)
+
HTP414
£436 (£363 Ex. VAT)
3 item(s)
+
HTP311
£541 (£451 Ex. VAT)
HTP172
£626 (£522 Ex. VAT)
119 item(s)
+
HTP256
£888 (£740 Ex. VAT)
15 item(s)
+
HTP257
£888 (£740 Ex. VAT)
39 item(s)
+
HTP291
£695 (£579 Ex. VAT)
HTP255
£816 (£680 Ex. VAT)