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
€8.43 (€7.03 Ex. VAT)
130 item(s)
− +
Add to Compare
1"_Hydroair_Union_Complete
1" Hydroair Union Complete - Genesis Air Blowers
€8.33 (€6.94 Ex. VAT)
31 item(s)
− +
Add to Compare
1.5 Inch Hydroair Pump Union
1.5 Inch Hydroair Pump Union
€7.13 (€5.94 Ex. VAT)
35 item(s)
− +
Add to Compare
1.5 Inch Socket Union
1.5 Inch Socket Union
€16.80 (€14.00 Ex. VAT)
17 item(s)
− +
Add to Compare
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)
− +
Add to Compare
1.5"_Heater_Union_Tail_Peice
1.5" Heater Union Tail Piece
€2.30 (€1.92 Ex. VAT)
75 item(s)
− +
Add to Compare
1.5"_Split_Heater_Union_Nut
1.5" Split Heater Union Nut
€4.14 (€3.45 Ex. VAT)
57 item(s)
− +
Add to Compare
2 Inch Davey Pump/Heater Union (Sold in Pairs)
2 Inch Davey Pump/Heater Union (Sold in Pairs)
€66.89 (€55.74 Ex. VAT)
− +
Add to Compare
-2%
2 Inch HA440 Pump Union
2 Inch HA440 Pump Union
€7.23 (€6.02 Ex. VAT)
46 item(s)
− +
Add to Compare
2 Inch Socket Union (with Female Thread)
2 Inch Socket Union (with Female Thread)
€22.51 (€18.76 Ex. VAT)
5 item(s)
− +
Add to Compare
Balboa_Heater_Union_Complete
2" Balboa Heater Union Collar & Tail Piece
€8.68 (€7.23 Ex. VAT)
− +
Add to Compare
2"_Heater_Union_Tail_Peice
2" Heater Union Tail Piece
€3.18 (€2.65 Ex. VAT)
116 item(s)
− +
Add to Compare
2"_Split_Heater_Union_Nut
2" Split Heater Union Nut
€3.85 (€3.20 Ex. VAT)
112 item(s)
− +
Add to Compare
2"_Split_Pump_Union_Nut
2" Split Pump Union Nut
€7.94 (€6.62 Ex. VAT)
86 item(s)
− +
Add to Compare
2" to 1.5" Threaded Union Adapter
2" to 1.5" Threaded Union Adapter
€8.76 (€7.30 Ex. VAT)
141 item(s)
− +
Add to Compare
2" to 2.5" Face Plate Adapter
2" to 2.5" Face Plate Adapter
€9.80 (€8.16 Ex. VAT)
109 item(s)
− +
Add to Compare
50mm Hydroair Pump Union
50mm Hydroair Pump Union
€6.40 (€5.33 Ex. VAT)
44 item(s)
− +
Add to Compare
ESPA Pump Union (WIPER3)
ESPA Pump Union (WIPER3)
€23.67 (€19.73 Ex. VAT)
18 item(s)
− +
Add to Compare
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)
− +
Add to Compare
1"_Spa_Pump_Union
Pump Union 1"x 1" Socket
€5.35 (€4.46 Ex. VAT)
12 item(s)
− +
Add to Compare
1.5"_Spa_Pump_Union
Pump Union 1.5"x 1.5" Socket
€6.65 (€5.54 Ex. VAT)
34 item(s)
− +
Add to Compare
2-Inch_Spa_Pump_Union
Pump Union 2"x 2" Socket
€7.70 (€6.41 Ex. VAT)
49 item(s)
− +
Add to Compare
2.5"_Pump_Union_With_2"_Socket
Pump Union 2.5" x 2" Socket
€10.90 (€9.09 Ex. VAT)
24 item(s)
− +
Add to Compare
2.5_Inch_Spa_Pump_Union
Pump Union 2.5" x 2.5" Socket
€10.90 (€9.09 Ex. VAT)
17 item(s)
− +
Add to Compare
Waterway_2"_45_Degree_Male_Pump_Union
Waterway 2" 45 Degree Male Pump Union
€8.54 (€7.11 Ex. VAT)
7 item(s)
− +
Add to Compare
Waterway_2"_90_Degree_Swept_Pump_Union
Waterway 2" 90 Degree Swept Pump Union
€10.02 (€8.35 Ex. VAT)
49 item(s)
− +
Add to Compare