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Meet the CG-Mani-A-CG4C-A — a compact, patented 4-Port Air Manifold Check Valve designed by CG Air Systems Inc. to simplify and safeguard your air-blower installations. This Mini-Manifold kit blends a spring-loaded check valve with a four-port manifold into one lien-free unit, delivering reliable backflow prevention without the bulk of traditional setups.
Why this matters: backflow in spa and air systems can cause noisy operation, reduced blower efficiency, and potential leaks. The CG4C-A tackles these issues with a two-level safety design that minimizes leak paths and provides dependable shutoff, so you can breathe easier about long-term performance.
This manifold is ideally suited for anyone upgrading or retrofitting air systems in spas, bathtubs with air features, or compact blowers where space is at a premium. By consolidating critical safety and distribution functions, the CG-Mani-A-CG4C-A helps you achieve quieter operation, improved reliability, and easier service compared with traditional, larger spring-valve assemblies.
Practical use cases include configuring multi-line air feeds from a single blower, routing air to multiple spa jets or features, and creating a safer, streamlined installation under the spa edge or bathtub where depth and accessibility are limited. The Type A air-system compatibility and 3/8" port sizing ensure straightforward integration with common spa and hot tub components.
What you get with the CG-Mani-A-CG4C-A is a purpose-built, patent-pending solution that prioritizes real-world reliability and installation simplicity. If you’re looking to replace bulky piping and reduce potential failure points while maintaining robust air-flow and safety, this 4-Port Manifold Check Valve is made for you.


