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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
Sort Alphabetically: A to Z
12 Per Page
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1 Inch Socket Union
1 Inch Socket Union
£6.81 (£5.67 Ex. VAT)
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-1%
1"_Hydroair_Union_Complete
1" Hydroair Union Complete - Genesis Air Blowers
£6.70 (£5.58 Ex. VAT)
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-27%
1.5 Inch Hydroair Pump Union
1.5 Inch Hydroair Pump Union
£4.21 (£3.51 Ex. VAT)
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-11%
1.5 Inch Socket Union
1.5 Inch Socket Union
£12.15 (£10.12 Ex. VAT)
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-15%
1.5 inch Socket Union (M Thread to F Socket)
1.5 inch Socket Union (M Thread to F Socket)
£10.00 (£8.33 Ex. VAT)
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-15%
1.5"_Heater_Union_Tail_Peice
1.5" Heater Union Tail Piece
£1.60 (£1.33 Ex. VAT)
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-10%
1.5"_Split_Heater_Union_Nut
1.5" Split Heater Union Nut
£3.03 (£2.52 Ex. VAT)
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-20%
2 Inch Davey Pump/Heater Union (Sold in Pairs)
2 Inch Davey Pump/Heater Union
£43.73 (£36.44 Ex. VAT)
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-18%
2 Inch HA440 Pump Union
2 Inch HA440 Pump Union
£5.17 (£4.31 Ex. VAT)
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2 Inch Socket Union
2 Inch Socket Union
£15.58 (£12.98 Ex. VAT)
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2 Inch Socket Union (with Female Thread)
2 Inch Socket Union (with Female Thread)
£21.82 (£18.18 Ex. VAT)
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-16%
Balboa_Heater_Union_Complete
2" Balboa Heater Union Collar & Tail Piece
£5.94 (£4.95 Ex. VAT)
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