Air Manifolds & Tubing

Air Manifolds & Tubing are essential components in your hot tub air blower system, distributing pressurized air from the blower evenly to multiple injectors. Properly functioning manifolds ensure balanced airflow, consistent bubbles, and a full hydrotherapy experience throughout your spa. The most common plumbing size for blower air manifolds is 1-1/2", and air tubing is typically 3/8", though other sizes may be used in specific spa configurations.

Over time, air manifolds and tubing can experience common failures, including:

• Cracks from freeze-ups, which cause air to leak and reduce bubble output.

• Glue joint leaks in manifolds, requiring replacement to restore proper airflow.

• Bent, worn, or loose tubing, which may disconnect or fail to grip tightly after years of use, leading to uneven airflow or weak bubbles.

• Clogged or restricted ports from debris or mineral buildup, reducing air delivery to spa jets.

Replacing damaged manifolds and worn tubing restores full air distribution, improves jet performance, and keeps your spa operating efficiently. Proper installation ensures consistent bubble patterns, even air pressure, and reliable hydrotherapy throughout your spa system.

This category includes a variety of replacement air manifolds and 3/8" tubing and tubing kits compatible with most residential hot tubs and retrofit air systems. SpaPartsNet.com knows parts best—call for support or text photos to quickly identify the correct manifold or tubing for your spa.

Call 1-866-829-3660 or Text Parts Pics to 772-800-5445.