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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
£7.21 (£6.01 Ex. VAT)
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1"_Hydroair_Union_Complete
1" Hydroair Union Complete - Genesis Air Blowers
£7.12 (£5.93 Ex. VAT)
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1.5 Inch Hydroair Pump Union
1.5 Inch Hydroair Pump Union
£6.10 (£5.08 Ex. VAT)
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1.5 Inch Socket Union
1.5 Inch Socket Union
£14.36 (£11.97 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)
£12.35 (£10.29 Ex. VAT)
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1.5"_Heater_Union_Tail_Peice
1.5" Heater Union Tail Piece
£1.97 (£1.64 Ex. VAT)
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1.5"_Split_Heater_Union_Nut
1.5" Split Heater Union Nut
£3.54 (£2.95 Ex. VAT)
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2 Inch Davey Pump/Heater Union (Sold in Pairs)
2 Inch Davey Pump/Heater Union (Sold in Pairs)
£57.19 (£47.66 Ex. VAT)
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2 Inch HA440 Pump Union
2 Inch HA440 Pump Union
£6.18 (£5.15 Ex. VAT)
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2 Inch Socket Union (with Female Thread)
2 Inch Socket Union (with Female Thread)
£19.25 (£16.04 Ex. VAT)
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Balboa_Heater_Union_Complete
2" Balboa Heater Union Collar & Tail Piece
£7.42 (£6.18 Ex. VAT)
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2"_Heater_Union_Tail_Peice
2" Heater Union Tail Piece
£2.72 (£2.27 Ex. VAT)
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