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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.

Eheim 16/22 mm hose (per meter)

£0.00 - £0.00
£0.00
£3.99
£3.99 - £3.99
£3.99

Eheim 16/22mm hose has 16mm Internal Diameter, 22mm Outside Diameter. Price is per meter

£0.00 - £0.00
£0.00
£3.99
£3.99 - £3.99
£3.99

Eheim 12/16 mm hose (per meter)

£0.00 - £0.00
£0.00
£2.49
£2.49 - £2.49
£2.49

Eheim 12/16mm Hose has12mm Internal Diameter, 16mm Outside Diameter. Price is per meter

£0.00 - £0.00
£0.00
£2.49
£2.49 - £2.49
£2.49
Sold out

Kamoer 3x5mm PVC Dosing Tube Pipe / 1m

£0.00 - £0.00
£0.00
£1.45
£1.45 - £1.45
£1.45
Out of stock

Kameor 3x5mm PVC Dosing pipe, price is for 1m of pipe, multiples will be sent in one continuous length.

£0.00 - £0.00
£0.00
£1.45
£1.45 - £1.45
£1.45
Sold out

Eheim 19/27mm hose (per meter)

£0.00 - £0.00
£0.00
£5.49
£5.49 - £5.49
£5.49

Eheim 19/2mm hose has 19mm Internal Diameter, 27mm Outside Diameter. Price is per meter

£0.00 - £0.00
£0.00
£5.49
£5.49 - £5.49
£5.49

Eheim 25/34mm hose (per meter)

£0.00 - £0.00
£0.00
£7.30
£7.30 - £7.30
£7.30

Eheim 25/34mm hose has 25mm Internal Diameter, 34mm Outside Diameter. Price is per meter

£0.00 - £0.00
£0.00
£7.30
£7.30 - £7.30
£7.30

Solvent Weld Glue PVC Adhesive 120g

£0.00 - £0.00
£0.00
£5.99
£5.99 - £5.99
£5.99
in stock

Solvent Weld Glue PVC Adhesive 120g Used to permanently glue pipe and fittings together. Supplied in a 120g tub complete with application brush. ...

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£0.00 - £0.00
£0.00
£5.99
£5.99 - £5.99
£5.99

Eheim 9/12 mm hose (per meter)

£0.00 - £0.00
£0.00
£1.49
£1.49 - £1.49
£1.49

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

£0.00 - £0.00
£0.00
£1.49
£1.49 - £1.49
£1.49

1/4" In Line Push Fit Valve

£0.00 - £0.00
£0.00
£4.49
£4.49 - £4.49
£4.49
in stock

This is a John Guest fitment usually used in Reverse Osmosis systems. 1/4" In Line Push Fit Valve RO Fitting

£0.00 - £0.00
£0.00
£4.49
£4.49 - £4.49
£4.49
Sold out

1/4 RO Pipe Tube White (per m)

£0.00 - £0.00
£0.00
£0.50
£0.50 - £0.50
£0.50
Out of stock

This is white tubing for your reverse osmosis systems.  Sold per meter (orders sent in a single length)

£0.00 - £0.00
£0.00
£0.50
£0.50 - £0.50
£0.50
Sold out
Sold out

Kamoer 4x6mm PVC Dosing Tube Pipe per meter

£0.00 - £0.00
£0.00
£1.30
£1.30 - £1.30
£1.30
Out of stock

4mm x 6mm PVC tubing, ideal for dosing pumps of all types and brandsKamoer 4x6mm PVC Dosing Tube Pipe sold per meter. If you order multiple metres ...

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£0.00 - £0.00
£0.00
£1.30
£1.30 - £1.30
£1.30
Sold out

25mm PVC 90 Degree Elbow

£0.00 - £0.00
£0.00
£3.69
£3.69 - £3.69
£3.69
in stock

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...

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£0.00 - £0.00
£0.00
£3.69
£3.69 - £3.69
£3.69

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

£0.00 - £0.00
£0.00
£5.49
£5.49 - £5.49
£5.49
in stock

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

£0.00 - £0.00
£0.00
£5.49
£5.49 - £5.49
£5.49

25mm PVC Pipe - 1.3m

£0.00 - £0.00
£0.00
£7.49
£7.49 - £7.49
£7.49
in stock

25mm 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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£0.00 - £0.00
£0.00
£7.49
£7.49 - £7.49
£7.49
Sold out

32mm PVC 90 Degree Elbow

£0.00 - £0.00
£0.00
£3.79
£3.79 - £3.79
£3.79
Out of stock

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...

View full details
£0.00 - £0.00
£0.00
£3.79
£3.79 - £3.79
£3.79
Sold out

32mm PVC Pipe - 1.3m

£0.00 - £0.00
£0.00
£8.49
£8.49 - £8.49
£8.49
Only 5 left!

32mm 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...

View full details
£0.00 - £0.00
£0.00
£8.49
£8.49 - £8.49
£8.49

40mm PVC Pipe - 1.3m

£0.00 - £0.00
£0.00
£8.99
£8.99 - £8.99
£8.99
in stock

40mm 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...

View full details
£0.00 - £0.00
£0.00
£8.99
£8.99 - £8.99
£8.99

40mm PVC 90 Degree Elbow

£0.00 - £0.00
£0.00
£3.89
£3.89 - £3.89
£3.89
in stock

40mm 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
£0.00 - £0.00
£0.00
£3.89
£3.89 - £3.89
£3.89
Sold out

32mm PVC Union Connector

£0.00 - £0.00
£0.00
£4.79
£4.79 - £4.79
£4.79
Out of stock

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...

View full details
£0.00 - £0.00
£0.00
£4.79
£4.79 - £4.79
£4.79
Sold out
Sold out

32mm PVC Straight Coupling

£0.00 - £0.00
£0.00
£3.79
£3.79 - £3.79
£3.79
Out of stock

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
£0.00 - £0.00
£0.00
£3.79
£3.79 - £3.79
£3.79
Sold out

1/4" Push Fit Non-Return Valve

£0.00 - £0.00
£0.00
£5.59
£5.59 - £5.59
£5.59
in stock

This is a John Guest fitment usually used in Reverse Osmosis systems.1/4" Puch Fit Non-Return Valve RO Component

£0.00 - £0.00
£0.00
£5.59
£5.59 - £5.59
£5.59

25mm PVC Union Connector

£0.00 - £0.00
£0.00
£4.69
£4.69 - £4.69
£4.69
in stock

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...

View full details
£0.00 - £0.00
£0.00
£4.69
£4.69 - £4.69
£4.69

40mm PVC Union Connector

£0.00 - £0.00
£0.00
£4.89
£4.89 - £4.89
£4.89
in stock

40mm 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...

View full details
£0.00 - £0.00
£0.00
£4.89
£4.89 - £4.89
£4.89
Sold out

20mm PVC 90 Degree Elbow

£0.00 - £0.00
£0.00
£3.49
£3.49 - £3.49
£3.49
Out of stock

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...

View full details
£0.00 - £0.00
£0.00
£3.49
£3.49 - £3.49
£3.49
Sold out

1/4" Push Fit Y-Connector

£0.00 - £0.00
£0.00
£3.50
£3.50 - £3.50
£3.50
in stock

This is a John Guest fitment usually used in Reverse Osmosis systems.1/4" Push Fit Y-Connector RO Component

£0.00 - £0.00
£0.00
£3.50
£3.50 - £3.50
£3.50