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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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1 Inch Socket Union
1 Inch Socket Union
£6.86 (£5.72 Ex. VAT)
9 item(s)
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1"_Hydroair_Union_Complete
1" Hydroair Union Complete - Genesis Air Blowers
£6.78 (£5.65 Ex. VAT)
43 item(s)
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1.5 Inch Hydroair Pump Union
1.5 Inch Hydroair Pump Union
£5.81 (£4.84 Ex. VAT)
7 item(s)
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1.5 Inch Socket Union
1.5 Inch Socket Union
£13.68 (£11.40 Ex. VAT)
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1.5 inch Socket Union (M Thread to F Socket)
1.5 inch Socket Union (M Thread to F Socket)
£11.76 (£9.80 Ex. VAT)
21 item(s)
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1.5 inch Socket Union (with Female Thread)
1.5 inch Socket Union (with Female Thread)
£16.51 (£13.76 Ex. VAT)
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1.5"_Heater_Union_Tail_Peice
1.5" Heater Union Tail Piece
£1.87 (£1.56 Ex. VAT)
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1.5"_Split_Heater_Union_Nut
1.5" Split Heater Union Nut
£3.37 (£2.81 Ex. VAT)
1 item(s)
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2 Inch Davey Pump/Heater Union (Sold in Pairs)
2 Inch Davey Pump/Heater Union (Sold in Pairs)
£54.47 (£45.39 Ex. VAT)
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-7%
2 Inch HA440 Pump Union
2 Inch HA440 Pump Union
£5.88 (£4.90 Ex. VAT)
13 item(s)
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2 Inch Socket Union
2 Inch Socket Union
£13.39 (£11.16 Ex. VAT)
12 item(s)
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2 Inch Socket Union (with Female Thread)
2 Inch Socket Union (with Female Thread)
£18.34 (£15.28 Ex. VAT)
4 item(s)
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Balboa_Heater_Union_Complete
2" Balboa Heater Union Collar & Tail Piece
£7.07 (£5.89 Ex. VAT)
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2"_Heater_Union_Tail_Peice
2" Heater Union Tail Piece
£2.59 (£2.16 Ex. VAT)
32 item(s)
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2"_Split_Heater_Union_Nut
2" Split Heater Union Nut
£3.13 (£2.61 Ex. VAT)
81 item(s)
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2"_Split_Pump_Union_Nut
2" Split Pump Union Nut
£6.47 (£5.39 Ex. VAT)
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2" to 1.5" Threaded Union Adapter
2" to 1.5" Threaded Union Adapter
£7.13 (£5.94 Ex. VAT)
166 item(s)
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2" to 2.5" Face Plate Adapter
2" to 2.5" Face Plate Adapter
£7.98 (£6.65 Ex. VAT)
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-5%
50mm Hydroair Pump Union
50mm Hydroair Pump Union
£5.21 (£4.34 Ex. VAT)
60 item(s)
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ESPA Pump Union (WIPER3)
ESPA Pump Union (WIPER3)
£19.28 (£16.07 Ex. VAT)
24 item(s)
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1"_Spa_Pump_Union
Pump Union 1"x 1" Socket
£4.36 (£3.63 Ex. VAT)
1 item(s)
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1.5"_Spa_Pump_Union
Pump Union 1.5"x 1.5" Socket
£5.41 (£4.51 Ex. VAT)
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2-Inch_Spa_Pump_Union
Pump Union 2"x 2" Socket
£6.26 (£5.22 Ex. VAT)
99 item(s)
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2.5"_Pump_Union_With_2"_Socket
Pump Union 2.5" x 2" Socket
£8.88 (£7.40 Ex. VAT)
11 item(s)
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2.5_Inch_Spa_Pump_Union
Pump Union 2.5" x 2.5" Socket
£8.88 (£7.40 Ex. VAT)
35 item(s)
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Waterway_2"_45_Degree_Male_Pump_Union
Waterway 2" 45 Degree Male Pump Union
£6.95 (£5.79 Ex. VAT)
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Waterway_2"_90_Degree_Swept_Pump_Union
Waterway 2" 90 Degree Swept Pump Union
£8.16 (£6.80 Ex. VAT)
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