• Returns & Warranty
  • Privacy Policy
  • Delivery
  • Terms & Conditions
  • Contact us
  • About us
  • Testimonials
+44 (0)1342 776401
LET US CALL YOU BACK
0
+44 (0)1342 776401
LET US CALL YOU BACK
0
All categories
  • Service & Repair
  • Hot Tubs for SaleCOMING SOON
  • Shop By Hot Tub Brand
  • Shop By Parts Brand
  • Our blog
  • Contact us

Unions

Unions

Welcome to the pipe unions section of our store.

We stock all sizes of spa pipe plumbing unions such as heater unions, socket unions, pump unions 1 inch, 1.5 inch, 2 inch, and 2.5 inch along with all other types and sizes designed to fit Aqua-flo, Hydroair, LX and Waterway hot tub pumps.

Here is a quick guide to the approximate outside thread diameters of pump connections,

1.5" unions: 63 mm OD, 2" unions: 78 mm OD, 2.5" unions: 93 mm OD.
Sort by Popularity
16 Per Page
2" to 1.5" Threaded Union Adapter
2" to 1.5" Threaded Union Adapter
132 item(s)
HTP1797

Threads onto a 1.5" pump wet end and provides a 2" union connection.

£772 (£643 Ex. VAT)
+ −
Add to cart
Balboa_Heater_Union_Complete
2" Balboa Heater Union Collar & Tail Piece
HTP117
2" Balboa Heater Union Collar & Tail Piece These are complete unions for Balboa Heaters.   Supplied With ~ 2" White split union collar with screws ~ 2" Plumbing tail piece for gluing onto 2" pipework. (2" pipe - 60mm) ~ O' Ring gasket   Need Help? If you need any advice on spa or hot tub plumbing or heating parts please do not hesitate in giving our office a call on 01342 717982 or by emailing us , our team have years of experience in the repair and manufacture of spas and will be more tha happy to help.
£764 (£637 Ex. VAT)
Out of stock
1.5"_Spa_Pump_Union
Pump Union 1.5"x 1.5" Socket
12 item(s)
HTP311

1.5" pump union found on spas and hot tubs, fits most brands of pump. sold individually.

£586 (£488 Ex. VAT)
+ −
Add to cart
2" HA440 Pump Union
2" HA440 Pump Union
21 item(s)
HTP118
£636 (£530 Ex. VAT)
+ −
Add to cart
Waterway_2"_90_Degree_Swept_Pump_Union
Waterway 2" 90 Degree Swept Pump Union
30 item(s)
HTP255

2" 90 degree swept elbow pump union, sold individually.

£882 (£735 Ex. VAT)
+ −
Add to cart
2"_Split_Pump_Union_Nut
2" Split Pump Union Nut
64 item(s)
HTP1405

Perfect for repairing a cracked spa pump union nut, fits all 2" pump wet end connections.

£700 (£583 Ex. VAT)
+ −
Add to cart
2"_Heater_Union_Tail_Peice
2" Heater Union Tail Piece
61 item(s)
HTP252
2" Heater Union Tail Piece These 2 inch heater union tail pieces are plumbed on to the end of 2 inch pipe work. Enabling you to connect and seal a 2 inch metal spa heater assembly to the pipe work with the addition of a split collar and O'ring gasket. Internal pipe connection - 2" (60mm) Outside thread diameter - 78mm
£281 (£234 Ex. VAT)
+ −
Add to cart
2-Inch_Spa_Pump_Union
Pump Union 2"x 2" Socket
20 item(s)
HTP172

The most common 2" pump union found on spas and hot tubs, sold individually.

£677 (£564 Ex. VAT)
+ −
Add to cart
2"_Split_Heater_Union_Nut
2" Split Heater Union Nut
50 item(s)
HTP251
2" Split Heater Union Nut These 2 inch split heater unions nuts come complete with screws. Can be used to replace 2 inch unions from spa heater brands such as Balboa, Gecko, Hydroquip, Spa Builders. Inside thread diameter - 78mm
£338 (£282 Ex. VAT)
+ −
Add to cart
1" Socket Union
1" Socket Union
101 item(s)
HTP1581
£743 (£619 Ex. VAT)
+ −
Add to cart
1"_Hydroair_Union_Complete
1" Hydroair Union Complete - Genesis Air Blowers
30 item(s)
HTP547

Hydroair union nut and tail piece, fits all their Genesis and perseus range of air blowers.

£733 (£611 Ex. VAT)
+ −
Add to cart
1.5"_Heater_Union_Tail_Peice
1.5" Heater Union Tail Piece
53 item(s)
HTP674
1.5" Heater Union Tail Piece These 1.5 inch heater union tail pieces are plumbed on to the end of 1.5 inch pipe work. Enabling you to connect and seal a 1.5 inch metal spa heater assembly to the pipe work with the addition of a split collar and O'Ring gasket. Internal pipe connection - 1.5" (48.5mm) External thread diameter -  63mm
£203 (£169 Ex. VAT)
+ −
Add to cart
2.5"_Pump_Union_With_2"_Socket
Pump Union 2.5" x 2" Socket
23 item(s)
HTP256

2.5" pump union for the larger Waterway wet end suctions, sold individually.

£960 (£800 Ex. VAT)
+ −
Add to cart
Waterway_2"_45_Degree_Male_Pump_Union
Waterway 2" 45 Degree Male Pump Union
8 item(s)
HTP291

2" 45 degree elbow pump union, sold individually.

£751 (£626 Ex. VAT)
+ −
Add to cart
1.5" Hydroair Pump Union
1.5" Hydroair Pump Union
33 item(s)
HTP552
£628 (£523 Ex. VAT)
+ −
Add to cart
2.5_Inch_Spa_Pump_Union
Pump Union 2.5" x 2.5" Socket
13 item(s)
HTP257

2.5" pump union for the larger Waterway wet end suctions, sold individually.

£960 (£800 Ex. VAT)
+ −
Add to cart
Previous
1 2
Next