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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 90 Degree Swept Elbow

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

20mm 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
£4.49
£4.49 - £4.49
Current price £4.49

32mm PVC 90 Degree Elbow

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

32mm 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
£3.79
£3.79 - £3.79
Current price £3.79

50mm PVC 4 Way Cross Connector

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

50mm PVC 4 Way Cross Connector Used for permanently joining four pieces of equally sized pipe at 90-degree angles. Our metric PVC Aquarium / Pond...

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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

25mm PVC 45 Degree Elbow

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

25mm 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
£3.69
£3.69 - £3.69
Current price £3.69

Reducing Connector 40mm to 25mm

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

40mm 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
£3.49
£3.49 - £3.49
Current price £3.49

20mm PVC Pipe - 1.3m

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

20mm 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 ma...

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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 90 Degree Elbow

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

25mm 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...

View full details
Original price £0.00 - Original price £0.00
Original price £0.00
£3.69
£3.69 - £3.69
Current price £3.69

1/4" Push Fit x 3/4" BSP Tap Adaptor

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

This is a John Guest fitment usually used in Reverse Osmosis systems.

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

3/8" to 1/4 Push Fit Reducer

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

This is a John Guest fitment usually used in Reverse Osmosis systems3/8" to 1/4 Push Fit Reducer RO Fitting

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

Ista Auto Top Off Float Valve

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

Ista Auto Top Off Float ValveIsta Auto Top Off Valve acts as a ballcock device that cuts the water flow off when the water in a container fills to ...

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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

32mm to 1" PVC Threaded Male Connector

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

32mm to 1" PVC Threaded Male Connector Threaded male section which is ideal for screwing into pumps or other pieces of equipment. Our metric PVC ...

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

32mm PVC Bonded Tank Connector Bulkhead

Original price £0.00 - Original price £0.00
Original price £0.00
£11.99
£11.99 - £11.99
Current price £11.99

32mm 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
£11.99
£11.99 - £11.99
Current price £11.99

32mm PVC Union Connector

Original price £0.00 - Original price £0.00
Original price £0.00
£4.79
£4.79 - £4.79
Current price £4.79

32mm 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
£4.79
£4.79 - £4.79
Current price £4.79

50mm PVC Tee Piece

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

50mm PVC Tee Piece Used for permanently joining three pieces of equally sized pipe at 90-degree angles. Our metric PVC Aquarium / Pond solvent we...

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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

32mm PVC 45 Degree Elbow

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

32mm 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...

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

Eheim 9/12 mm hose (per meter)

Original price £0.00 - Original price £0.00
Original price £0.00
£1.49
£1.49 - £1.49
Current price £1.49

Eheim 9/12mm hose has 9mm Internal Diameter, 12mm Outside Diameter. Price is per meter

Original price £0.00 - Original price £0.00
Original price £0.00
£1.49
£1.49 - £1.49
Current price £1.49

Ista Hose Adapter I-961

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

Ista Hose Adapter / Reducer 16mm - 12mmThe Ista Hose Adapter is ideal for safely reducing 16mm hose to 12mm (or visa versa), without the worry of l...

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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 PVC Grey Gate Valve

Original price £0.00 - Original price £0.00
Original price £0.00
£59.99
£59.99 - £59.99
Current price £59.99

40mm 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
£59.99
£59.99 - £59.99
Current price £59.99

Straight Coupling 50mm - PVC White

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

Straight Coupling 50mm - PVC 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
£3.99
£3.99 - £3.99
Current price £3.99

50mm to 40mm PVC Reducing Bush

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

50mm to 40mm PVC Reducing Bush Used to reduce pipe diameter. The bush simply solvent welds directly into each end of the pipe. Our metric PVC Aqu...

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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 Bush

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 Bush Used to reduce pipe diameter. The bush simply solvent welds directly into each end of the pipe. Our metric PVC Aqu...

View full details
Original price £0.00 - Original price £0.00
Original price £0.00
£3.49
£3.49 - £3.49
Current price £3.49

20mm to 1/2" PVC Threaded Female Connector

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

20mm to 1/2" 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
£4.99
£4.99 - £4.99
Current price £4.99

25mm to 3/4" PVC Threaded Male 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 Male Connector Threaded male section which is ideal for screwing into pumps or other pieces of equipment. Our metric PV...

View full details
Original price £0.00 - Original price £0.00
Original price £0.00
£5.29
£5.29 - £5.29
Current price £5.29

25mm PVC Bonded Tank Connector Bulkhead

Original price £0.00 - Original price £0.00
Original price £0.00
£10.49
£10.49 - £10.49
Current price £10.49

25mm PVC Bonded Tank Connector Bulkhead A premium tank connector which does not reduce the internal diameter on both sides of the tank connector....

View full details
Original price £0.00 - Original price £0.00
Original price £0.00
£10.49
£10.49 - £10.49
Current price £10.49