Magic Plastics - 1" Air Check Valve for Spa Air Pipes - 0821-10

Magic Plastics – 1″ Air Check Valve for Spa Air Pipes

The Magic Plastics 1″ air check valve, part number 0821-10, is a one-way spa check valve designed for air pipes. It is fitted so that water from the spa cannot flow back through the air jets and flood the blower. It has a female connection for 1-inch pipe and is not well suited for use on water pipes.

What the 1-inch air check valve does

A hot tub air system carries air from the blower to the air jets. When the blower is not running, water can try to travel the opposite way, through the jets and along the air pipe. This one-way valve is usually placed on the air pipe to stop that from happening and to keep water away from the blower.

If you are replacing a worn or damaged check valve in an air line, the Magic Plastics 0821-10 is a straightforward like-for-like option for a 1-inch pipe run.

Connection and specifications

The valve has a female connection for 1-inch pipe. The inside diameter is 33 mm, so measure your pipe and fitting before ordering to be sure it matches.

• Brand: Magic Plastics
• Part number: 0821-10
• Connection: female, for 1-inch pipe
• Inside diameter: 33 mm
• Spring tension: ½ lb (0.22 kg)

Use on air pipes, not water pipes

This valve is intended for air lines. The manufacturer information states that it is not well suited for use on water pipes, so do not choose it as a replacement for a check valve in the water circuit of your spa.

Before you buy, confirm that the part you are replacing sits on an air pipe between the blower and the air jets and that the pipe size is 1 inch. A mismatch in size or in application means the valve will not do its job properly.

How to choose the right replacement

Check the pipe size first, then the position of the old valve in your plumbing. If the old valve carries a marking or part number, compare it with 0821-10 to see whether it is the same model.

If you are unsure whether this spa air check valve suits your hot tub, contact us with the details of your current part and we will help you find the right one.