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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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Waterway_2"_90_Degree_Swept_Pump_Union
Waterway 2" 90 Degree Swept Pump Union
€10.32 (€8.60 Ex. VAT)
38 item(s)
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Waterway_2"_45_Degree_Male_Pump_Union
Waterway 2" 45 Degree Male Pump Union
€8.78 (€7.32 Ex. VAT)
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2.5_Inch_Spa_Pump_Union
Pump Union 2.5" x 2.5" Socket
€11.23 (€9.36 Ex. VAT)
14 item(s)
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2.5"_Pump_Union_With_2"_Socket
Pump Union 2.5" x 2" Socket
€11.23 (€9.36 Ex. VAT)
24 item(s)
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2-Inch_Spa_Pump_Union
Pump Union 2"x 2" Socket
€7.92 (€6.60 Ex. VAT)
27 item(s)
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1.5"_Spa_Pump_Union
Pump Union 1.5"x 1.5" Socket
€6.85 (€5.71 Ex. VAT)
14 item(s)
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1"_Spa_Pump_Union
Pump Union 1"x 1" Socket
€5.50 (€4.58 Ex. VAT)
12 item(s)
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Marquis Spas 1.5" Heater Union Tailpiece (Male Slip)
Marquis Spas 1.5" Heater Union Tailpiece (Male Slip)
€5.96 (€4.97 Ex. VAT)
14 item(s)
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ESPA Pump Union (WIPER3)
ESPA Pump Union (WIPER3)
€24.40 (€20.33 Ex. VAT)
16 item(s)
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50mm Hydroair Pump Union
50mm Hydroair Pump Union
€6.60 (€5.50 Ex. VAT)
43 item(s)
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2" to 2.5" Face Plate Adapter
2" to 2.5" Face Plate Adapter
€10.09 (€8.41 Ex. VAT)
88 item(s)
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2" to 1.5" Threaded Union Adapter
2" to 1.5" Threaded Union Adapter
€9.03 (€7.52 Ex. VAT)
140 item(s)
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2"_Split_Pump_Union_Nut
2" Split Pump Union Nut
€8.19 (€6.82 Ex. VAT)
130 item(s)
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2"_Split_Heater_Union_Nut
2" Split Heater Union Nut
€3.95 (€3.30 Ex. VAT)
64 item(s)
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2"_Heater_Union_Tail_Peice
2" Heater Union Tail Piece
€3.29 (€2.74 Ex. VAT)
66 item(s)
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Balboa_Heater_Union_Complete
2" Balboa Heater Union Collar & Tail Piece
€8.94 (€7.45 Ex. VAT)
10 item(s)
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2 Inch Socket Union (with Female Thread)
2 Inch Socket Union (with Female Thread)
€23.18 (€19.32 Ex. VAT)
4 item(s)
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2 Inch HA440 Pump Union
2 Inch HA440 Pump Union
€7.44 (€6.20 Ex. VAT)
30 item(s)
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2 Inch Davey Pump/Heater Union (Sold in Pairs)
2 Inch Davey Pump/Heater Union (Sold in Pairs)
€68.90 (€57.42 Ex. VAT)
2 item(s)
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1.5"_Split_Heater_Union_Nut
1.5" Split Heater Union Nut
€4.27 (€3.56 Ex. VAT)
50 item(s)
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1.5"_Heater_Union_Tail_Peice
1.5" Heater Union Tail Piece
€2.37 (€1.98 Ex. VAT)
49 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)
€14.88 (€12.40 Ex. VAT)
3 item(s)
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1.5 Inch Socket Union
1.5 Inch Socket Union
€17.31 (€14.42 Ex. VAT)
41 item(s)
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1.5 Inch Hydroair Pump Union
1.5 Inch Hydroair Pump Union
€7.35 (€6.12 Ex. VAT)
34 item(s)
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1"_Hydroair_Union_Complete
1" Hydroair Union Complete - Genesis Air Blowers
€8.57 (€7.15 Ex. VAT)
31 item(s)
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1 Inch Socket Union
1 Inch Socket Union
€8.69 (€7.24 Ex. VAT)
106 item(s)
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