Hot Tub & Spa - Pump Unions

Pump unions are typically made of PVC and make it easier to remove the pump when servicing the hot tub. They connect the pump suction and discharge to the spa's plumbing and heater.

The union fittings make for quicker & easier connection and disconnection of components. They comprise a male threaded part and a female threaded part sealed together (hand tight) with an o-ring.   

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Pump unions are typically made of PVC and make it easier to remove the pump when servicing the hot tub. They connect the pump suction and discharge to the spa's plumbing and heater.

The union fittings make for quicker & easier connection and disconnection of components. They comprise a male threaded part and a female threaded part sealed together (hand tight) with an o-ring.   

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Spares Available
  • Balboa Pump Union
  • Fits 63mm (1.5") buttress thread
  • Tailpiece Tee (Socket) - 32mm
  • Use with 32mm pipe & fittings
  • Includes O-ring
In stock 49 in stock
In stock Same day dispatch on orders before 15:00
£11.02
Saving: £1.22
Collar = 1.5 " (Known As)
Buttress Thread
Tailepiece Tee = 32mm (Socket)
O-Ring Included
  • Balboa Pump Union
  • Fits 1.5" Buttress threads (63mmŲ)
  • 1.5" Socket
  • Use with 1.5" pipework & connections
  • Includes O-ring
In stock 9 in stock
In stock Same day dispatch on orders before 15:00
£3.49
 
Collar = 1.5 " (Known As)
Buttress Thread
Tailpiece = 1.5" (Known As)
O-Ring Included
  • Balboa Pump Union
  • Fits 1.5" Buttress threads (63mmŲ)
  • 50mm Socket
  • Use with 50mm pipework & connections
  • Includes O-ring
In stock 33 in stock
In stock Same day dispatch on orders before 15:00
£3.99
Saving: £0.14
Collar = 1.5 " (Known As)
Buttress Thread
Tailpiece = 50 mm
O-Ring Included
  • Balboa Pump Union
  • Fits 1.5" BSP threads (63mmŲ)
  • 1.5" Socket
  • Use with 1.5" pipework & connections
  • O-ring Not Included
In stock 7 in stock
In stock Same day dispatch on orders before 15:00
£5.99
Saving: £0.33
Collar = 1.5 " (Known As)
BSP Thread
Tailpiece = 1.5" (Known As)
O-Ring Not Included
  • Balboa Pump Union
  • Fits 1.5" Buttress Threads (63mmŲ)
  • 90° Elbow
  • 50mm Socket
  • Use with 50mm pipework & connections
  • Includes O-ring
In stock 13 in stock
In stock Same day dispatch on orders before 15:00
£6.35
Saving: £0.70
Collar = 1.5 " (Known As)
Buttress Thread
Tailpiece = 90° Elbow 50 mm
O-Ring Included
  • Espa Pump Union
  • Fits 1.5" BSP threads (63mmŲ)
  • 50mm Socket
  • Use with 50mm pipework & connections
  • O-ring Not Included
In stock 10 in stock
In stock Same day dispatch on orders before 15:00
£16.49
Saving: £3.82
Collar = 1.5 " (Known As)
BSP Thread
Tailpiece = 50mm
O-Ring Not Included
  • Espa Pump Union
  • Fits 1.5" BSP threads (63mmŲ)
  • Tee - 32mm Sockets
  • Use with 32mm pipework & connections 
  • Suitable for Espa Pumps
In stock 2 in stock
In stock Same day dispatch on orders before 15:00
£15.99
Saving: £8.01
Collar = 1.5 " (Known As)
BSP Thread
Tailepiece Tee = 32mm (Socket)
O-Ring Not Included
  • Espa Pump Union
  • Fits 1.5" BSP threads (63mmŲ)
  • 1.5" Socket
  • Use with 1.5" pipework & connections
  • O-ring Not Included
In stock 11 in stock
In stock Same day dispatch on orders before 15:00
£15.49
Saving: £3.52
Collar = 1.5 " (Known As)
BSP Thread
Tailpiece = 1.5" (Known As)
O-Ring Not Included
  • Espa Pump Union
  • Fits 1.5" BSP threads (63mmŲ)
  • Tee - 1.0" Sockets
  • Use with 1.0" pipework & connections 
  • Suitable for Espa Pumps
In stock 8 in stock
In stock Same day dispatch on orders before 15:00
£21.49
Saving: £4.91
Collar = 1.5 " (Known As)
BSP Thread
Tailepiece Tee = 1 Inch (Socket)
O-Ring Not Included
  • Espa Union Kit
  • Suitable for Tiper Models
  • 1.5" Buttress Connections
  • 1.5 Inch Tailpiece (Socket) x 1 Inch Tailpiece Tee
  • Use with 1.5"/1" pipework & connections
  • O-ring Included
Available for Pre Order Available for Pre Order
Available for Pre Order Estimated Dispatch on 02/09/2020
Available for Pre Order More stock (51) due on 01/09/2020
£47.99
 
Collar = 1.5 " (Known As)
Buttress Thread
Tailpiece = 1.5", Tee = 1"
O-Ring Included
  • Espa Union Kit
  • Suitable for Tiper Models
  • 1.5" Buttress Connections
  • 50mm Socket x 32mm Tee
  • Use with 50mm/32 mm pipework & connections
  • O-ring Included
In stock 9 in stock
In stock Same day dispatch on orders before 15:00
£34.49
Saving: £0.51
Collar = 1.5 " (Known As)
Buttress Thread
Tailpiece = 50mm, Tee = 32mm
O-Ring Included
  • Gecko Pump Union
  • Fits 1.5" Buttress threads (63mmŲ)
  • 1.5" Socket
  • Use with 1.5" pipework & connections
  • Includes O-ring
In stock 4 in stock
In stock Same day dispatch on orders before 15:00
£8.99
Saving: £0.48
Balboa Pump Union
Buttress Thread
Tailpiece = 1.5" (Known As)
O-Ring Included
  • Koller Pump Union
  • Suitable for Pumps & Blowers
  • Fits 1.5" Buttress threads (63mmŲ)
  • 32mm Tailpiece (Socket)
  • Use with 32mm pipework & connections
  • Includes O-ring
Out of stock Out of Stock
Email me when back in stock
£6.49
Saving: £0.54
Fits Pumps & Blowers
Collar = 1.5 " (Known As)
Buttress Thread
Tailpiece = 32mm
  • Koller Pump Union
  • Suitable for Pumps & Blowers
  • Fits 1.5" Buttress threads (63mmŲ)
  • 50mm Tailpiece (Socket)
  • with Shared Screw
  • Suitable for pumps & blowers
Available for Pre Order Special Order Item
Alert Lead time confirmed upon order
£9.49
Saving: £0.97
Fits Pumps, Blowers & UV System
Collar = 1.5 " (Known As)
Buttress Thread
Tailpiece = 50mm
  • Koller Pump Union
  • Fits 1.5" Buttress threads (63mmŲ)
  • 25mm Tailpiece Tee (Socket)
  • Use with 25mm pipework & connections
  • Includes O-ring
In stock 13 in stock
In stock Same day dispatch on orders before 15:00
£7.49
 
Collar = 1.5 " (Known As)
Buttress Thread
Tailpiece Tee = 25mm
O-Ring Included
  • Koller Pump Union
  • Fits 1.5" Buttress threads (63mmŲ)
  • 32mm Tailpiece Tee (Socket)
  • Use with 32mm pipework & connections
  • Includes O-ring
Out of stock Out of Stock
Email me when back in stock
£8.99
Saving: £1.00
Collar = 1.5 " (Known As)
Buttress Thread
Tailpiece Tee = 32mm
O-Ring Included
  • Koller Pump Union with split nut
  • Fits 1.5" Buttress Threads (63mmŲ)
  • 90° Elbow
  • 50mm Socket Tailpiece Connection (or 2" Spigot)
  • Use with 50mm/2" pipework & connections
  • Includes O-ring
In stock 5 in stock
In stock Same day dispatch on orders before 15:00
£8.49
 
Collar = 1.5 " (Known As)
Buttress Thread
Tailpiece = 90° Elbow 50 mm
O-Ring Included
  • LX Pump Union
  • Fits 1.5" Buttress threads (63mmŲ)
  • 1.5" Socket Connection
  • Use with 1.5" pipework & connections
  • Includes O-ring
  • Suitable for the LX range of pumps  
In stock 1 in stock
In stock Same day dispatch on orders before 15:00
In stock More stock (31) on order
£6.49
Saving: £1.43
Collar = 1.5 " (Known As)
Buttress Thread
Tailpiece = 1.5" (Known As)
O-Ring Included
  • Rocoi Union Kit - Metric
  • Fits 1.50" Euro Buttress 
  • 50mm Tailpiece (Socket)
  • 32mm Tailpiece Tee
In stock 9 in stock
In stock Same day dispatch on orders before 15:00
£34.49
Saving: £0.51
Rocoi Pump Union Kit
Euro Butress Thread
32mm Tailpiece Tee
50mm Tailpiece (Socket)
  • Rocoi Pump Union Set
  • Fits 1.5" (63mmŲ) Euro Buttress
  • 1.5" (48mmŲ) Female socket
  • 1.0" (33.3mmŲ) Female Tee

 

Available for Pre Order Available for Pre Order
Available for Pre Order Estimated Dispatch on 02/09/2020
Available for Pre Order More stock (51) due on 01/09/2020
£47.99
 
Rocoi Pump Union Kit
Euro Butress Thread
1 Inch Tailpiece Tee
1.5 Inch Tailpiece (Socket)
  • Rocoi Pump Union
  • Suitable for Rocoi pumps
  • Fits 1.5" Buttress threads (63mmŲ)
  • 1.5" Socket Connection
  • Use with 1.5" pipework & connections
  • Includes O-ring

 

In stock 1 in stock
In stock Same day dispatch on orders before 15:00
In stock More stock (31) on order
£6.49
Saving: £1.43
Collar = 1.5 " (Known As)
Buttress Thread
Tailpiece = 1.5" (Known As)
O-Ring Included
  • Rocoi Pump Union Set
  • Fits 1.5" (63mmŲ) Euro Buttress
  • 1.0" discharge tee
  • 1.0" Barb fittings
  • 45° elbow
  • Pipe clip
Available for Pre Order Available for Pre Order
Available for Pre Order Estimated Dispatch 14 Days
£37.35
Saving: £1.05
Rocoi Pump Union Kit
Euro Butress Thread
Tee With 45° Elbow
1" Barbs
  • Rocoi Pump Unions
  • Fits 1.5" (63mmŲ) Euro Buttress
  • 1.0" Discharge Tee
  • 1.0" Barb Fittings
  • Pipe clips

 

Available for Pre Order Available for Pre Order
Available for Pre Order Estimated Dispatch 14 Days
£30.19
 
Rocoi Pump Union Kit
Euro Butress Thread
Collar = 1.5" (Known As)
1" Barbs
  • SuperFlow Pump Union
  • Suitable for 1.3HP Model
  • Fits 1.5" Buttress threads (63mmŲ)
  • 1.5" Tailpiece (Socket)
  • Use with 1.5" pipework & connections
  • Includes O-ring
In stock 12 in stock
In stock Same day dispatch on orders before 15:00
£14.99
 
Collar = 1.5 " (Known As)
Buttress Thread
Tailpiece = 1.5" (Known As)
O-Ring Included
  • SuperFlow Pump Union
  • Suitable for 1HP Model
  • Fits 1.5" Buttress threads (63mmŲ)
  • 1.5" Socket
  • Use with 1.5" pipework & connections
  • Includes O-ring
In stock 1 in stock
In stock Same day dispatch on orders before 15:00
£14.89
 
Collar = 1.5 " (Known As)
Buttress Thread
Tailpiece = 1.5" (Known As)
O-Ring Included
  • Waterway Pump Union
  • Fits 1.0" Buttress threads (50mmŲ)
  • 1.0 Inch Tailpiece (Socket)
  • Use with 1.0" pipework & connections
  • Includes O-ring


In stock 5 in stock
In stock Same day dispatch on orders before 15:00
£3.49
Saving: £0.82
Collar = 1.0" (Known As)
Buttress Thread
Tailpiece = 1.0" (Known As)
O-Ring Included
  • Waterway Pump Union
  • Fits 1.5" Buttress threads (63mmŲ)
  • 1.5" Socket Connection
  • Use with 1.5" pipe work
  • Includes O-ring
In stock 2 in stock
In stock Same day dispatch on orders before 15:00
In stock More stock (10) on order
£3.99
Saving: £1.20
Collar = 1.5 " (Known As)
Buttress Thread
Tailpiece = 1.5" (Known As)
O-Ring Included
  • AP45 Pump Union
  • Lower Suction Port
  • Suitable for AP45 Pump
In stock 2 in stock
In stock Same day dispatch on orders before 15:00
£9.49
 
Fits only AP45
Available while stocks last
Lower 1.25" Suction
For 1.1/4 Inch Pipe
  • Pump Union suitable for AP45 pumps
  • Includes: Washer, Clamp & Socket
  • 1.0" Inch Connection
In stock 2 in stock
In stock Same day dispatch on orders before 15:00
£9.49
 
Fits only AP45
Available while stocks last
Upper 1.00"
For 1.0 Inch Manifolds / Pipe