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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.

A 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
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2 Inch Socket Union (with Female Thread)
2 Inch Socket Union (with Female Thread)
£19.82 (£16.52 Ex. VAT)
14 item(s)
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1.5 Inch Socket Union
1.5 Inch Socket Union
£14.80 (£12.33 Ex. VAT)
91 item(s)
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1.5 inch Socket Union (M Thread to F Socket)
1.5 inch Socket Union (M Thread to F Socket)
£12.72 (£10.60 Ex. VAT)
6 item(s)
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2.5"_Pump_Union_With_2"_Socket
Pump Union 2.5" x 2" Socket
£9.60 (£8.00 Ex. VAT)
72 item(s)
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2.5_Inch_Spa_Pump_Union
Pump Union 2.5" x 2.5" Socket
£9.60 (£8.00 Ex. VAT)
26 item(s)
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Waterway_2"_90_Degree_Swept_Pump_Union
Waterway 2" 90 Degree Swept Pump Union
£8.82 (£7.35 Ex. VAT)
68 item(s)
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2" to 2.5" Face Plate Adapter
2" to 2.5" Face Plate Adapter
£8.63 (£7.19 Ex. VAT)
106 item(s)
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Waterway_2"_45_Degree_Male_Pump_Union
Waterway 2" 45 Degree Male Pump Union
£7.51 (£6.26 Ex. VAT)
24 item(s)
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1 Inch Socket Union
1 Inch Socket Union
£7.43 (£6.19 Ex. VAT)
90 item(s)
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2"_Split_Pump_Union_Nut
2" Split Pump Union Nut
£7.00 (£5.83 Ex. VAT)
226 item(s)
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2-Inch_Spa_Pump_Union
Pump Union 2"x 2" Socket
£6.77 (£5.64 Ex. VAT)
1179 item(s)
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1.5"_Spa_Pump_Union
Pump Union 1.5"x 1.5" Socket
£5.86 (£4.88 Ex. VAT)
124 item(s)
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1"_Spa_Pump_Union
Pump Union 1"x 1" Socket
£4.70 (£3.92 Ex. VAT)
18 item(s)
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1.5"_Split_Heater_Union_Nut
1.5" Split Heater Union Nut
£3.65 (£3.04 Ex. VAT)
158 item(s)
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2"_Split_Heater_Union_Nut
2" Split Heater Union Nut
£3.38 (£2.82 Ex. VAT)
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2"_Heater_Union_Tail_Peice
2" Heater Union Tail Piece
£2.81 (£2.34 Ex. VAT)
34 item(s)
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1.5"_Heater_Union_Tail_Peice
1.5" Heater Union Tail Piece
£2.03 (£1.69 Ex. VAT)
83 item(s)
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