Hobby cleaning brushes for pipes, pack of 3, 15 to 35 mm

Regular price $10.00
Regular price Sale price $10.00
$3.33 × 3 with no fees

A set of three 37 cm Hobby brushes, 15, 25 and 35 mm in diameter, for cleaning the inside of drain pipes and tubes up to 35 mm.

Their flexible heads pass through fittings and short elbows.

Ref. HO60618·Aquarium maintenance
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The summary

Three diameters to reach every corner of the water circuit

A water circuit is not just long flexible pipes. It also includes rigid tubes, strainers, fittings, elbows and pump outlets, where deposits build up just as much and where a single brush never suits every diameter. This Hobby set therefore brings together 3 brushes of 37 cm, of 15, 25 and 35 mm, which cover most aquarium and small pond pipes up to 35 mm internal diameter. That way you always have the right diameter to hand for each part you take apart.

12/16 mm pipe

The 15 mm brush slips in and scrubs the whole wall.

Pipe 16/22 or 19/27 mm

The 25 mm brush cleans the pipes of external filters.

25/34 mm pipe

The 35 mm brush fits into wide outlets.

Rigid tube or fitting

Choose the brush whose diameter is closest by eye.

📐 The right diameter for each part

A brush cleans well when it is slightly wider than the passage it travels through, because its bristles then bend against the wall instead of floating in the centre. This explains the gap between the three diameters in the set: the 15 mm brush suits 12/16 mm pipes, fine suction tubes and the outlets of small pumps; the 25 mm one suits the 16/22 and 19/27 mm pipes of external filters; the largest, at 35 mm, suits drain pipes and the tubes of pond pumps. Their flexible heads, with synthetic bristles, also follow the slight bends of fittings. At 37 cm long, they are meant for short pieces or those open at both ends; for a pipe over a metre long, the Aquael 1.6 m flexible pipe brush takes over.

Replace a pipe that has become opaque and rigid

A PVC pipe that has yellowed, hardened or lost its transparency is hard to clean, because deposits cling to its aged wall. The JBL grey flexible pipe, 2.5 m replaces it from 9/12 to 19/27 mm, and its translucent tint lets you see the water flowing while slowing algae on the inner wall. You can therefore see at a glance when a pass with the brush becomes necessary.

Some points in the circuit get clogged faster than others. The intake strainer of a pump catches debris and becomes covered in a mat of algae, the outlet tube of an internal filter builds up a bacterial film, and elbows or T-fittings, where the water slows down, trap sludge. These are also the places where a deposit restricts the flow the most, since the passage is already narrow there. A visual check each time you rinse your filter sponge lets you deal with them before they block, and in a pond, the skimmer tube and the pump outlet to the waterfall deserve the same glance.

Water and vinegar, never household cleaning products

Residues of detergent or household cleaning products remain in the bristles and on the walls of the parts, then pass into the tank water when you reassemble, where they are toxic to fish. So clean your brushes and parts with clear water, and keep diluted white vinegar for limescale. After soaking in vinegar, rinse each part thoroughly before putting it back in place.

Take apart the piece to be cleaned and rinse it once to remove the sludge, then run the brush back and forth, turning it slightly. Rinse again under running water before reassembling. The intake tube and outlet of an internal filter can be cleaned this way in 2 minutes with the 15 mm brush, each time you rinse the sponge. Limescale, common in hard water, sometimes resists brushing: soaking for an hour in diluted white vinegar softens it, and the brush then finishes the job. After use, rinse the brushes and leave them to air dry so that they keep their shape.

🌱 In aquaponics

An aquaponic system has many short components: bulkhead fittings, elbows, siphon outlets, pump strainers and gutter fittings. The water, rich in organic matter, leaves a deposit there that narrows the passage and can, over time, block the outlet of a grow bed and make it overflow. A 25 or 35 mm brush fits through the most common bulkhead fittings, which saves you from dismantling the bed to clear them. The guide to building your own aquaponic system shows where these parts sit in the circuit, and the article on common mistakes in aquaponics explains what putting off maintenance can cost.

Technical specifications

The essentials

Contents
3 brushes
Diameters
15, 25 and 35 mm
Length
37 cm
Heads
Flexible, synthetic bristles

To budget for separately

Long pipes
Flexible 1.6 m bottle brush
Limescale
Diluted white vinegar

In the box

  • 3 cleaning brushes of 37 cm, with diameters of 15, 25 and 35 mm

Dimensions and use: Hobby manufacturer data, taken on 09/10/2026.

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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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