What does this tube actually do?

It routes CO2 or air tubing over the tank edge and down to a diffuser or bubble stone. It keeps the line tidy and stops it kinking at the rim.

Does it come with a bubble stone or diffuser?

No. Only the U-shaped acrylic tube is included. You supply the tubing, diffuser or bubble stone, and air pump or CO2 regulator.

Which length should I pick?

Match the length to how far the tube must reach over your tank rim and down the inside wall. Measure your rim and water line before choosing.

Will it fit thick tank rims?

The bend is fixed, so check the interval and length against your rim thickness. Very thick rims or braces may not clear the U.

Is acrylic as good as glass here?

Acrylic is lighter and won't shatter like glass, but it scratches and can haze. Glass stays clearer longer but is more fragile.

Rinse with warm water and a soft brush; avoid abrasive pads that scratch acrylic. Soak in diluted vinegar if mineral film builds up.

FEITIANWUGONG

Aquarium Accessories Clear Acrylic Tube U Shape Pipe Oxygen Diffuser

Best price now

$7.65at WalmartChecked Nov 10

Prices are checked against each store and labelled with when.

Visit Walmart

FEITIANWUGONG

Aquarium Accessories Clear Acrylic Tube U Shape Pipe Oxygen Diffuser

Best price now

$7.65at WalmartChecked Nov 10

Prices are checked against each store and labelled with when.

Visit Walmart

Ask our agent about this product

It checks today's price at every store, compares the alternatives and answers in about a minute.

Price facts

Last seen at $7.65 at Walmart on Nov 10.

Our take on the Aquarium Accessories Clear Acrylic Tube U Shape Pipe Oxygen Diffuser

This is a clear acrylic U-shaped tube that carries CO2 or oxygen tubing over the rim of a fish tank and down to a diffuser or bubble stone. It clips onto the tank wall and holds the line in place so the tube doesn't kink or float. It is a small, cheap accessory rather than a filter or pump, so it suits planted-tank owners running CO2 and anyone tired of tubing slipping into the water. Rivals in this niche are glass or stainless steel U-pipes and simple suction clips; acrylic is lighter and less breakable than glass but scratches more easily.

Best forPlanted tanks running CO2 injectionHobbyists using an air pump and bubble stoneTanks where tubing keeps slipping into the water

Pros

Clear acrylic blends in against the tank wall
U-bend keeps tubing from kinking at the rim
Light and less fragile than glass versions
Holds tubing steady without extra suction cups

Cons

Acrylic scratches and can cloud over time
Only the tube is included, no clips or fittings
Bend radius is fixed, so it may not fit thick rimmed tanks
Manual measurement leaves up to 1 cm of length variance

Aquarium Accessories Clear Acrylic Tube U Shape Pipe Oxygen Diffuser prices at every store

WalmartNew
In stockSold by nongshenReturns: Sold by a Walmart Marketplace seller; returns go to the seller under the seller's returns policy.
$7.65Free shippingChecked Nov 10
Visit Walmart

About the Aquarium Accessories Clear Acrylic Tube U Shape Pipe Oxygen Diffuser

This clear acrylic tube is U-shaped and made for aquariums. It holds a CO2 or oxygen line and works with a diffuser or bubble stone.

The acrylic is high-strength and resists oxidation. The tube goes on the wall of the tank. It is sold as the tube only, and other accessories shown in the pictures are not included.

Type: U-shape tube
Material: Acrylic
Color: Clear
Length options: 15 cm (5.91 in), 20 cm (7.87 in), 25 cm (9.84 in), 30 cm (11.81 in), 35 cm (13.78 in)
Interval: About 2 cm (0.79 in)
Quantity: 1 piece
Measurement note: Allow 0-1 cm error due to manual measurement
In the box: 1 x Tube

Questions and answers

What does this tube actually do?: It routes CO2 or air tubing over the tank edge and down to a diffuser or bubble stone. It keeps the line tidy and stops it kinking at the rim.
Does it come with a bubble stone or diffuser?: No. Only the U-shaped acrylic tube is included. You supply the tubing, diffuser or bubble stone, and air pump or CO2 regulator.
Which length should I pick?: Match the length to how far the tube must reach over your tank rim and down the inside wall. Measure your rim and water line before choosing.
Will it fit thick tank rims?: The bend is fixed, so check the interval and length against your rim thickness. Very thick rims or braces may not clear the U.
Is acrylic as good as glass here?: Acrylic is lighter and won't shatter like glass, but it scratches and can haze. Glass stays clearer longer but is more fragile.
How do I clean it?: Rinse with warm water and a soft brush; avoid abrasive pads that scratch acrylic. Soak in diluted vinegar if mineral film builds up.
Where is the Aquarium Accessories Clear Acrylic Tube U Shape Pipe Oxygen Diffuser cheapest?: At Walmart, for $7.65, as of our latest check.

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