EHEIM clip-on suction cups for aquarium pipe, 9/12 to 16/22 mm

Regular price $7.00
Regular price Sale price $7.00

These clip suction cups hold a pipe against the glass of an aquarium or tank. The clip swivels and detaches, so you can remove the pipe without pulling off the suction cup.

They come in three sizes, for 9/12, 12/16 and 16/22 mm pipes.

Ref. H401305·Pipework accessory
Diamètre du tuyau : 9/12 mm
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The summary

  • Which diameter: 9/12, 12/16 or 16/22 mm, depending on your pipe.
  • What you receive: a pack of 2 clip suction cups in the diameter you choose.
  • How they hold: the suction cup sticks to the glass, and the clip pivots and detaches.
  • Which filter: EHEIM classic 150 to 600 filters, depending on which side the pipe is on.

The clip holds the filter or pump pipe against the glass without crushing it

EHEIM clip suction cups hold the hose of a filter or pump against the glass without squashing it, so the flow rate stays intact. The clip swivels and detaches, so you can remove the hose without pulling off the suction cup. Each pack contains 2 pieces, in 9/12, 12/16 or 16/22 mm.

A filter or pump pipe that floats freely ends up shifting, drawing in air or splashing water out of the tank. These EHEIM clip suction cups hold it against the glass, at the height you choose. The clip is elastic: it holds the pipe without crushing it, so the flow stays full. It swivels on the suction cup and can be unclipped, which lets you take the pipe off for maintenance without detaching the suction cup. Each pack contains 2 pieces, for freshwater and saltwater alike.

📏 Choosing the right diameter

The diameter is printed on the pipe: the first number is the inside diameter, the second the outside diameter, in millimetres, and the clip is chosen to match this pair of values. A clip that is too large lets the pipe slip, while one that is too small crushes it. If the marking has worn off, measure the outside diameter with callipers or a ruler: about 12 mm for 9/12, 16 mm for 12/16 and 22 mm for 16/22.

9/12 mm

This size fits the delivery pipe of the classic 150.

12/16 mm

This diameter fits the classic 250 and 350, the inlet of the 150 and the outlet of the 600.

16/22 mm

This clip fits the suction pipe of the classic 600.

🔧 EHEIM classic filters

A single filter sometimes uses two diameters, which is why the suction cups are sold by size. The classic 150 takes 12/16 mm on the intake and 9/12 mm on the outlet, whereas the classic 600 takes 16/22 mm on the intake and 12/16 mm on the outlet. So allow one pack of each diameter for these two models, and 2 packs of 12/16 mm for a classic 250 or 350. Before maintenance, close the filter taps: you can then release the clips without spilling water, and put the pipe back exactly where it was.

Fitting the grey pipe on a classic 250 or 350

The EHEIM classic 250 and 350 filters use 12/16 mm on both the intake and the outlet. The grey flexible 12/16 mm pipe fits them, and 2 packs of 12/16 suction cups are enough to hold its two lengths along the glass as far as the strainer and the outlet. The pipe then stays straight, with no kinks that would reduce the filter's flow.

A clean pane of glass for a good hold

A suction cup will not hold on glass covered in limescale or algae. Clean the chosen spot and moisten the suction cup before pressing it against the glass.

🌱 In aquaponics

An aquaponic rearing tank often carries several pipes: the pump intake, the return from the grow beds, sometimes an external filter. Securing them against the wall stops a pipe from coming out of the water and the pump running dry, which wears it out quickly. The guide to getting an aquaponic system off to a good start details the set-up of the circuit and its first weeks of running in.

Technical specifications

The essentials

Contents
2 clip suction cups
Diameters
9/12, 12/16 or 16/22 mm
Clip
Flexible, swivelling, removable
Water
Freshwater and marine

EHEIM classic filters

Classic 150
9/12 and 12/16 mm9/12 on the outlet, 12/16 on the inlet.
Classic 250 and 350
12/16 mm
Classic 600
12/16 and 16/22 mm12/16 on the outlet, 16/22 on the intake.
References
4013050, 4014100, 4015150In order of diameter, from 9/12 to 16/22.

In the box

  • 2 clip suction cups, in the chosen diameter

Contents and compatibility taken on 11/10/2026 from the EHEIM spare parts lists for the classic 150, 250, 350 and 600.

Manufacturer and product safety

Manufacturer
EHEIM GmbH & Co. KG
Postal address
Plochinger Str. 54, 73779 Deizisau, Allemagne
Website
eheim.com

Information provided under Regulation (EU) 2023/988 on general product safety.

What diameter for your pipe?

The same suction cup in three clip sizes, one for each pipe diameter.

Which diameter? One answer, and the table highlights the size that suits you.

Outside diameter of the pipe (mm)Typical usePrice
9/12 mmYour choice12 mmClassic 150 outlet$7.00
Recommended
12/16 mmYour choice
16 mmClassic 250 and 350$7.00
16/22 mmYour choice22 mmIntake of the classic 600$7.00
9/12 mm
What the clip holds
Outside diameter of the pipe (mm)12 mm
Typical useClassic 150 outlet
12/16 mmRecommended
What the clip holds
Outside diameter of the pipe (mm)16 mm
Typical useClassic 250 and 350
16/22 mm
What the clip holds
Outside diameter of the pipe (mm)22 mm
Typical useIntake of the classic 600

Diameters and compatibilities checked on 11/10/2026 against the EHEIM classic spare parts lists.

Estimate your
delivery time

Delivered to your home by Colissimo or Chronopost, as you prefer at checkout. The exact cost is shown in the basket, according to the total weight of your order.

Frequently asked questions

6 questions

6 key questions

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