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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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12 Per Page
-11%
2"_Heater_Union_Tail_Peice
2" Heater Union Tail Piece
£2.31 (£1.92 Ex. VAT)
109 item(s)
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-11%
2"_Split_Heater_Union_Nut
2" Split Heater Union Nut
£2.79 (£2.32 Ex. VAT)
78 item(s)
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-11%
2"_Split_Pump_Union_Nut
2" Split Pump Union Nut
£5.74 (£4.78 Ex. VAT)
84 item(s)
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2" to 1.5" Threaded Union Adapter
2" to 1.5" Threaded Union Adapter
£7.45 (£6.21 Ex. VAT)
114 item(s)
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2" to 2.5" Face Plate Adapter
2" to 2.5" Face Plate Adapter
£9.00 (£7.50 Ex. VAT)
107 item(s)
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-14%
50mm Hydroair Pump Union
50mm Hydroair Pump Union
£4.72 (£3.93 Ex. VAT)
19 item(s)
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-7%
1"_Spa_Pump_Union
Pump Union 1"x 1" Socket
£4.05 (£3.37 Ex. VAT)
10 item(s)
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-10%
1.5"_Spa_Pump_Union
Pump Union 1.5"x 1.5" Socket
£4.85 (£4.04 Ex. VAT)
14 item(s)
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2-Inch_Spa_Pump_Union
Pump Union 2"x 2" Socket
£7.01 (£5.84 Ex. VAT)
48 item(s)
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2.5"_Pump_Union_With_2"_Socket
Pump Union 2.5" x 2" Socket
£9.89 (£8.24 Ex. VAT)
19 item(s)
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2.5_Inch_Spa_Pump_Union
Pump Union 2.5" x 2.5" Socket
£9.91 (£8.26 Ex. VAT)
16 item(s)
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Waterway_2"_45_Degree_Male_Pump_Union
Waterway 2" 45 Degree Male Pump Union
£7.74 (£6.45 Ex. VAT)
24 item(s)
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