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Aquarium Plumbing

At Kraken Corals, we stock a fantastic selection of aquarium supplies for enthusiasts and hobbyists alike, from PVC dosing tubes to lock line adaptors, you can find all the accessories you need at a great price. Whether you are taking the first steps into the world of aquariums or are simply in need of replacement parts for an existing setup, we’ve got the plumbing accessories you need.

Our extensive range covers a variety of aquarium plumbing needs and includes lock line adaptors for connecting RFGs, a variety of reverse osmosis fittings, flexible tube options, and a selection of general connections. These plumbing accessories are essential for the safety, comfort and continued maintenance of your marine life.

We stock professional-grade products from established brands, including Aqua Medic and Red Sea, to help you create the best conditions for your aquarium. Whether you require lock line adapters, RO fittings, flexible tubing, or hard plumbing solutions such as valves and flow pump adapters, Kraken Corals can help you find everything you need to maintain a healthy aquatic environment. Take a look at the full range below and order online for fast UK delivery.

Please Note: Diameters of all our PVC Fittings are measured on the internal diameter and the diameter of our PVC Pipe lengths are measured on the external diameter. This allows our PVC Pipe lengths to slot into our PVC fittings and be solvent glued into place.

Filters

20mm PVC Bonded Tank Connector Bulkhead

Original price £0.00 - Original price £0.00
Original price £0.00
£9.99
£9.99 - £9.99
Current price £9.99

20mm PVC Bonded Tank Connector Bulkhead A premium tank connector which does not reduce the internal diameter on both sides of the tank connector....

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Original price £0.00 - Original price £0.00
Original price £0.00
£9.99
£9.99 - £9.99
Current price £9.99

25mm PVC Tank Connector Bulkhead

Original price £0.00 - Original price £0.00
Original price £0.00
£4.99
£4.99 - £4.99
Current price £4.99

25mm PVC Tank Connector Bulkhead Used to make a watertight connection between aquarium and the pipe fittings. Please see note below on tank conne...

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Original price £0.00 - Original price £0.00
Original price £0.00
£4.99
£4.99 - £4.99
Current price £4.99

25mm PVC Simple Ball Valve

Original price £0.00 - Original price £0.00
Original price £0.00
£8.99
£8.99 - £8.99
Current price £8.99

25mm PVC Simple Ball Valve Used to regulate or stop water flow down the pipe. Our metric PVC Aquarium / Pond solvent weld plumbing is ideal for v...

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Original price £0.00 - Original price £0.00
Original price £0.00
£8.99
£8.99 - £8.99
Current price £8.99

25mm PVC Union Connector

Original price £0.00 - Original price £0.00
Original price £0.00
£4.69
£4.69 - £4.69
Current price £4.69

25mm PVC Union Connector Used for joining two pieces of equally sized pipe in a straight line but can be unscrewed later for easy access / mainte...

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Original price £0.00 - Original price £0.00
Original price £0.00
£4.69
£4.69 - £4.69
Current price £4.69

20mm PVC Union Connector

Original price £0.00 - Original price £0.00
Original price £0.00
£4.49
£4.49 - £4.49
Current price £4.49

20mm PVC Union Connector Used for joining two pieces of equally sized pipe in a straight line but can be unscrewed later for easy access / mainte...

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Original price £0.00 - Original price £0.00
Original price £0.00
£4.49
£4.49 - £4.49
Current price £4.49

50mm PVC 90 Degree Swept Elbow

Original price £0.00 - Original price £0.00
Original price £0.00
£7.99
£7.99 - £7.99
Current price £7.99

50mm PVC 90 Degree Swept Elbow Used to create a less harsh 90-degree angle bend between two pieces of equally sized pipe pieces. The use of a swe...

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Original price £0.00 - Original price £0.00
Original price £0.00
£7.99
£7.99 - £7.99
Current price £7.99

20mm PVC 90 Degree Elbow

Original price £0.00 - Original price £0.00
Original price £0.00
£3.49
£3.49 - £3.49
Current price £3.49

20mm PVC 90 Degree Elbow Used for permanently joining two pieces of equally sized pipe at a 90-degree angle. Our metric PVC Aquarium / Pond solve...

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Original price £0.00 - Original price £0.00
Original price £0.00
£3.49
£3.49 - £3.49
Current price £3.49

25mm PVC Straight Coupling

Original price £0.00 - Original price £0.00
Original price £0.00
£3.69
£3.69 - £3.69
Current price £3.69

Finest Aquatics 25mm PVC Straight Coupling Used for permanently joining two pieces of equally sized pipe in a straight line. Our metric PVC Aquar...

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Original price £0.00 - Original price £0.00
Original price £0.00
£3.69
£3.69 - £3.69
Current price £3.69

Ista 16mm PVC Hose Tubing

Original price £0.00 - Original price £0.00
Original price £0.00
£6.99 - £8.99
£6.99 - £8.99
Current price £6.99

Ista 16mm PVC Hose Tubing Ista flexible hose available in a range of hose diameters and lengths. Suitable for all aquarium applications including ...

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Original price £0.00 - Original price £0.00
Original price £0.00
£6.99 - £8.99
£6.99 - £8.99
Current price £6.99

32mm PVC Grey Gate Valve

Original price £0.00 - Original price £0.00
Original price £0.00
£44.99
£44.99 - £44.99
Current price £44.99

32mm Grey Gate Valve Gate valves are used to finely control water flow. The most accurate type of valve, ideal for use on drain lines to control wa...

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Original price £0.00 - Original price £0.00
Original price £0.00
£44.99
£44.99 - £44.99
Current price £44.99

25mm PVC Grey Gate Valve

Original price £0.00 - Original price £0.00
Original price £0.00
£39.99
£39.99 - £39.99
Current price £39.99

25mm Grey Gate Valve Gate valves are used to finely control water flow. The most accurate type of valve, ideal for use on drain lines to control wa...

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Original price £0.00 - Original price £0.00
Original price £0.00
£39.99
£39.99 - £39.99
Current price £39.99

Straight Coupling 25mm - PVC White

Original price £0.00 - Original price £0.00
Original price £0.00
£3.69
£3.69 - £3.69
Current price £3.69

25mm PVC Straight Coupling (White) Used for permanently joining two pieces of equally sized pipe in a straight line. Our metric PVC Aquarium / Po...

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Original price £0.00 - Original price £0.00
Original price £0.00
£3.69
£3.69 - £3.69
Current price £3.69

Reducing Connector 50mm to 25mm

Original price £0.00 - Original price £0.00
Original price £0.00
£3.99
£3.99 - £3.99
Current price £3.99

50mm to 25mm PVC Reducing Connector Used to reduce pipe diameter. Provides less pressure loss than a reducing bush due to gradual reduction to th...

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Original price £0.00 - Original price £0.00
Original price £0.00
£3.99
£3.99 - £3.99
Current price £3.99

40mm to 32mm PVC Reducing Connector

Original price £0.00 - Original price £0.00
Original price £0.00
£3.49
£3.49 - £3.49
Current price £3.49

40mm to 32mm PVC Reducing Connector Used to reduce pipe diameter. Provides less pressure loss than a reducing bush due to gradual reduction to th...

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Original price £0.00 - Original price £0.00
Original price £0.00
£3.49
£3.49 - £3.49
Current price £3.49

32mm to 25mm PVC Reducing Connector

Original price £0.00 - Original price £0.00
Original price £0.00
£3.29
£3.29 - £3.29
Current price £3.29

32mm to 25mm PVC Reducing Connector Used to reduce pipe diameter. Provides less pressure loss than a reducing bush due to gradual reduction to th...

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Original price £0.00 - Original price £0.00
Original price £0.00
£3.29
£3.29 - £3.29
Current price £3.29

25mm to 3/4" PVC Threaded Female Connector

Original price £0.00 - Original price £0.00
Original price £0.00
£5.29
£5.29 - £5.29
Current price £5.29

25mm to 3/4" PVC Threaded Female Connector Threaded female section which is ideal for screwing onto pumps or pieces of equipment. Our metric PVC ...

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Original price £0.00 - Original price £0.00
Original price £0.00
£5.29
£5.29 - £5.29
Current price £5.29

20mm PVC Pipe - 0.4m

Original price £0.00 - Original price £0.00
Original price £0.00
£5.99
£5.99 - £5.99
Current price £5.99

20mm PVC Pipe - 0.4m Hard PVC solvent weld pipe compatible with all of our fittings. Also available in 1.3m Lengths. Our metric PVC Aquarium / Po...

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Original price £0.00 - Original price £0.00
Original price £0.00
£5.99
£5.99 - £5.99
Current price £5.99

50mm PVC Pipe - 1.3m

Original price £0.00 - Original price £0.00
Original price £0.00
£13.99
£13.99 - £13.99
Current price £13.99

50mm PVC Pipe - 1.3m Hard PVC solvent weld pipe compatible with all of our fittings. Due to shipping regulations – we can only supply pipe in max...

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Original price £0.00 - Original price £0.00
Original price £0.00
£13.99
£13.99 - £13.99
Current price £13.99

20mm PVC Double Union Ball Valve

Original price £0.00 - Original price £0.00
Original price £0.00
£8.99
£8.99 - £8.99
Current price £8.99

20mm PVC Double Union Ball Valve Used to regulate or stop water flow down the pipe. The unions on both sides allow the valve to be easily disconn...

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Original price £0.00 - Original price £0.00
Original price £0.00
£8.99
£8.99 - £8.99
Current price £8.99

25mm PVC None Return Valve

Original price £0.00 - Original price £0.00
Original price £0.00
£14.99
£14.99 - £14.99
Current price £14.99

25mm PVC None Return Valve Used to prevent water back siphoning down the pipe when water pump is stopped. Ideal for applications where there is l...

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Original price £0.00 - Original price £0.00
Original price £0.00
£14.99
£14.99 - £14.99
Current price £14.99

32mm PVC 90 Degree Swept Elbow

Original price £0.00 - Original price £0.00
Original price £0.00
£5.49
£5.49 - £5.49
Current price £5.49

32mm PVC 90 Degree Swept Elbow Used to create a less harsh 90-degree angle bend between two pieces of equally sized pipe pieces. The use of a swe...

View full details
Original price £0.00 - Original price £0.00
Original price £0.00
£5.49
£5.49 - £5.49
Current price £5.49

50mm PVC 45 Degree Elbow

Original price £0.00 - Original price £0.00
Original price £0.00
£3.99
£3.99 - £3.99
Current price £3.99

50mm PVC 45 Degree Elbow Used for permanently joining two pieces of equally sized pipe at a 45-degree angle. Our metric PVC Aquarium / Pond solve...

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Original price £0.00 - Original price £0.00
Original price £0.00
£3.99
£3.99 - £3.99
Current price £3.99
Sold out

40mm PVC Straight Coupling

Original price £0.00 - Original price £0.00
Original price £0.00
£3.89
£3.89 - £3.89
Current price £3.89

Finest Aquatics 40mm PVC Straight Coupling Used for permanently joining two pieces of equally sized pipe in a straight line. Our metric PVC Aquar...

View full details
Original price £0.00 - Original price £0.00
Original price £0.00
£3.89
£3.89 - £3.89
Current price £3.89

32mm PVC Straight Coupling

Original price £0.00 - Original price £0.00
Original price £0.00
£3.79
£3.79 - £3.79
Current price £3.79

Finest Aquatics 32mm PVC Straight Coupling Used for permanently joining two pieces of equally sized pipe in a straight line. Our metric PVC Aquar...

View full details
Original price £0.00 - Original price £0.00
Original price £0.00
£3.79
£3.79 - £3.79
Current price £3.79