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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
Newest Items First
12 Per Page
1.5 Inch Socket Union
1.5 Inch Socket Union
€16.80 (€14.00 Ex. VAT)
47 item(s)
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-2%
2 Inch HA440 Pump Union
2 Inch HA440 Pump Union
€7.23 (€6.02 Ex. VAT)
43 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)
€14.44 (€12.04 Ex. VAT)
7 item(s)
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50mm Hydroair Pump Union
50mm Hydroair Pump Union
€6.40 (€5.33 Ex. VAT)
44 item(s)
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1.5 Inch Hydroair Pump Union
1.5 Inch Hydroair Pump Union
€7.13 (€5.94 Ex. VAT)
34 item(s)
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ESPA Pump Union (WIPER3)
ESPA Pump Union (WIPER3)
€23.67 (€19.73 Ex. VAT)
18 item(s)
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2 Inch Davey Pump/Heater Union (Sold in Pairs)
2 Inch Davey Pump/Heater Union (Sold in Pairs)
€66.89 (€55.74 Ex. VAT)
2 item(s)
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2" to 2.5" Face Plate Adapter
2" to 2.5" Face Plate Adapter
€9.80 (€8.16 Ex. VAT)
92 item(s)
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1 Inch Socket Union
1 Inch Socket Union
€8.43 (€7.03 Ex. VAT)
128 item(s)
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2 Inch Socket Union (with Female Thread)
2 Inch Socket Union (with Female Thread)
€22.51 (€18.76 Ex. VAT)
4 item(s)
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Marquis Spas 1.5" Heater Union Tailpiece (Male Slip)
Marquis Spas 1.5" Heater Union Tailpiece (Male Slip)
€5.80 (€4.83 Ex. VAT)
14 item(s)
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1.5"_Spa_Pump_Union
Pump Union 1.5"x 1.5" Socket
€6.65 (€5.54 Ex. VAT)
36 item(s)
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