Fish tank air oxygen pump

Air pumps must be kept at a height above the aquarium’s highest water level to ensure that water does not flow back into the air pump in the event of a power outage, and they must not touch or abut the aquarium to ensure that the vibration created by the air pumps does not disturb the aquatic fishes.

Before putting your hands in the water, disconnect all of the electrical aquarium gadgets.

We suggested that the air pump and other electrical aquarium gadgets be turned off.

Energy Saving. Low noise big output. 1 outlet. Suitable for fresh/ Sea water. High performance air pump with good air output. Do not put the air pump into the water.

How to Measure Your Dog for Harnesses, Collars & Dog Apparel 

 Whether you're outfitting your dog with a new harness, collar, or some stylish apparel, accurate measurements are key to ensuring the best fit. Avoid the hassle of returns and exchanges by following these simple steps to measure your dog properly for their new gear.

Types of measurements & How to measure

Topline or back
• Using a tape measure, have your dog stand and measure along the top of his spine from the base of the neck where it joins the body—usually where his collar sits—to the base of his tail.
• For male dogs you may have to adjust the measurement. If the clothing you’re buying doesn’t have a cut out for his groin and belly, you might want to shorten the length a bit to minimize the chances he’ll urinate on his new clothes.
• If your dog is between sizes, choose the larger size.

Chest girth
• This is the measurement around the largest part of your dog’s rib cage, usually just behind the front legs
• Measure closely all the way around his chest when he’s standing.
• To get the right amount of snugness, use the 'two-finger rule' by slipping two fingers between the measuring tape and your dog.
• If your dog is between sizes, choose the larger size.

Neck girth
• This is the circumference of your dog’s neck, generally where the collar sits.
• Position the tape measure from the dog’s withers—the ridge between the shoulder blades— to the top of his chest.
• Then measure all the way around your dog’s neck, holding the tape measure closely.
• Use the 'two-finger rule.'
• If your dog is between sizes, again, choose the larger size.

Measuring Your Dog for Harnesses

•  In order to choose the right size of any type of harness, first you’ll need his chest and neck measurement.
•  Use the 'two-finger rule' for both neck and chest measurements. You should be able to fit two fingers in between your dog and the harness.
•  Read the product details carefully. Some products are sized by the dog’s measurements; others are sized by the dimensions of the actual product.

Measuring Your Dog for Collars 

• The only measurement you’ll need here is neck circumference.
• Measure even if you’re buying an adjustable collar; they still come in sizes.
• Use the 'two-finger rule.'You should be able to fit two fingers in between your dog and the collar. Make sure it fits comfortably around the neck and avoid making it too tight. Use your two fingers and lay them flat underneath the measuring tape to leave some space.
• For Greyhounds and other long-necked breeds, the collar typically sits much higher, at the top of the neck just below the head. But take the measurement lower on his neck, between the withers and the collar level.
• If between sizes, go with the larger size.

Measuring Your Dog for Sweaters, Jackets, Raincoats & Life Jackets

• For most Sweater, Jackets, Raincoats & Life Jackets you will need to measure Topline & Back, Chest Girth and Neck Girth.

🐶 Dog Hats: A Fitting Guide

Dogs come in all shapes and sizes, so it's essential to measure your pup’s head before picking out the perfect hat.

🎯 1. Diameter Measurement

What it is: The width of your dog’s head from one side to the other, across the top.
How to measure:

Use a ruler or measuring tape.

Measure straight across the top of the head, just above the ears.

Compare this measurement to the inner diameter of the hat.

📏 Tip: The hat should rest gently without pressing tightly on the sides of the head.

📐 2. Circumference Measurement

What it is: The distance around your dog’s head at the thickest part.
How to measure:

Use a soft, flexible measuring tape.

Wrap it around the head just in front of the ears and under the jaw.

Record the full circle measurement.

📏 Tip: This helps ensure the hat stays on without being too tight.

[Model]: RS-180
[Color]: Black
[Material]: Plastic
[Voltage]: 220V-240V, 50Hz/60Hz
[Power]: 2.5W
[Air flow capacity]: 5LPM
[Air Output]: 2.5L/min
[Dimension]: Approx. 9 * 5.5* 4cm
[Package Size]: 13 * 7* 5.5cm
[Power cable length]: 70CM
[Pressure]:Morethan 0.02MPa
[Noise]: MAX 25DB