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Pipe Unions

Pipe Unions

Plumbing Unions

This category contains all the unions used on a hot tub and spas plumbing. We stock a wide range of replacement plumbing unions, socket unions, split unions, unions for many brands of pumps, heaters and air blowers.

Quick guide to unions & measurements

Split Unions - Used for heaters and can be used for when a pump union collar has cracked.

1" Unions - Connect onto pumps or heaters with a 50mm thread diameter
1.5" Unions - Connect onto pumps or heaters with a 62mm thread diameter
2" Unions - Connect onto pumps or heaters with a 78mm thread diameter

2.5" Pump Unions - Connect onto pumps with a 90mm thread diameter
-10%
1 Inch Socket Union
£4.90
£5.45
(Inc VAT)
-10%
1.5 Inch Hydroair Pump Union
£4.69
£5.21
(Inc VAT)
-10%
1.5 Inch Socket Union
£9.73
£10.81
(Inc VAT)
-10%
1.5 inch Threaded Nipple
£3.06
£3.40
(Inc VAT)
-10%
1.5"_Heater_Union_Tail_Peice
£1.36
£1.51
(Inc VAT)
-10%
1.5"_Split_Heater_Union_Nut
£2.45
£2.72
(Inc VAT)
-10%
2 Inch HA440 Pump Union
£4.69
£5.21
(Inc VAT)
-10%
2 Inch Socket Union
£9.51
£10.57
(Inc VAT)
-10%
2"_Heater_Union_Tail_Peice
£1.88
£2.09
(Inc VAT)
-10%
2"_Split_Heater_Union_Nut
£2.28
£2.53
(Inc VAT)
-10%
2"_Split_Pump_Union_Nut
£4.70
£5.22
(Inc VAT)
-10%
2" to 1.5" Threaded Union Adapter
£4.33
£4.81
(Inc VAT)
-10%
2" to 2.5" Face Plate Adapter
£5.79
£6.43
(Inc VAT)
-10%
50mm Hydroair Pump Union
£4.09
£4.55
(Inc VAT)
-10%
ESPA Pump Union (WIPER0)
£10.08
£11.20
(Inc VAT)
-10%
ESPA Pump Union (WIPER3)
£13.61
£15.12
(Inc VAT)
-10%
1"_Spa_Pump_Union
£3.17
£3.52
(Inc VAT)
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