Currency:
€ £
Currency:
(€)

Good to know

Order Hot Tub Parts by Phone
Call us now - 01342 776400

Fast Shipping to UK & Europe
Free UK next day - spend £100

Full Product Warranty
1 Year warranty on everything

No Quibble Returns Policy
30 days to return for full refund

Lowest Price Guarantee
We will beat any UK online price

Balboa Approved

Balboa Certified Badge

Refine Your Search

Price − +
Manufacturer − +
Reset

Send us a photo

Send us a photo

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
50 Per Page
1 Inch Socket Union
1 Inch Socket Union
€8.69 (€7.24 Ex. VAT)
− +
1"_Hydroair_Union_Complete
1" Hydroair Union Complete - Genesis Air Blowers
€8.57 (€7.15 Ex. VAT)
− +
1.5 Inch Hydroair Pump Union
1.5 Inch Hydroair Pump Union
€7.35 (€6.12 Ex. VAT)
− +
1.5 Inch Socket Union
1.5 Inch Socket Union
€17.31 (€14.42 Ex. VAT)
− +
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)
− +
1.5"_Heater_Union_Tail_Peice
1.5" Heater Union Tail Piece
€2.37 (€1.98 Ex. VAT)
− +
1.5"_Split_Heater_Union_Nut
1.5" Split Heater Union Nut
€4.27 (€3.56 Ex. VAT)
− +
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 Inch HA440 Pump Union
2 Inch HA440 Pump Union
€7.44 (€6.20 Ex. VAT)
− +
2 Inch Socket Union (with Female Thread)
2 Inch Socket Union (with Female Thread)
€23.18 (€19.32 Ex. VAT)
− +
Balboa_Heater_Union_Complete
2" Balboa Heater Union Collar & Tail Piece
€8.94 (€7.45 Ex. VAT)
− +
2"_Heater_Union_Tail_Peice
2" Heater Union Tail Piece
€3.29 (€2.74 Ex. VAT)
− +
2"_Split_Heater_Union_Nut
2" Split Heater Union Nut
€3.95 (€3.30 Ex. VAT)
− +
2"_Split_Pump_Union_Nut
2" Split Pump Union Nut
€8.19 (€6.82 Ex. VAT)
− +
2" to 1.5" Threaded Union Adapter
2" to 1.5" Threaded Union Adapter
€9.03 (€7.52 Ex. VAT)
− +
2" to 2.5" Face Plate Adapter
2" to 2.5" Face Plate Adapter
€10.09 (€8.41 Ex. VAT)
− +
50mm Hydroair Pump Union
50mm Hydroair Pump Union
€6.60 (€5.50 Ex. VAT)
− +
ESPA Pump Union (WIPER3)
ESPA Pump Union (WIPER3)
€24.40 (€20.33 Ex. VAT)
− +
Marquis Spas 1.5" Heater Union Tailpiece (Male Slip)
Marquis Spas 1.5" Heater Union Tailpiece (Male Slip)
€5.96 (€4.97 Ex. VAT)
− +
1"_Spa_Pump_Union
Pump Union 1"x 1" Socket
€5.50 (€4.58 Ex. VAT)
− +
1.5"_Spa_Pump_Union
Pump Union 1.5"x 1.5" Socket
€6.85 (€5.71 Ex. VAT)
− +
2-Inch_Spa_Pump_Union
Pump Union 2"x 2" Socket
€7.92 (€6.60 Ex. VAT)
− +
2.5"_Pump_Union_With_2"_Socket
Pump Union 2.5" x 2" Socket
€11.23 (€9.36 Ex. VAT)
− +
2.5_Inch_Spa_Pump_Union
Pump Union 2.5" x 2.5" Socket
€11.23 (€9.36 Ex. VAT)
− +
Waterway_2"_45_Degree_Male_Pump_Union
Waterway 2" 45 Degree Male Pump Union
€8.78 (€7.32 Ex. VAT)
− +
Waterway_2"_90_Degree_Swept_Pump_Union
Waterway 2" 90 Degree Swept Pump Union
€10.32 (€8.60 Ex. VAT)
− +