Meet the CRB Air Plunger — a precise, reliable replacement actuator engineered to deliver consistent, fault-free operation for pneumatic spa air switches. Built to perform under the damp heat of spa environments, this plunger turns a simple press into a dependable signal for your spa control system, so your hot tub, whirlpool, or bath stays responsive when you need it most.
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Broad compatibility: Operates with a wide range of spa air switches, including Portapac Demand, Waterco Onga, and other common spa bath operators. If your system uses a pneumatic air switch, the CRB is designed to work with it.
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Low-profile, durable top: A stainless steel top provides a clean, modern finish while staying slim enough to sit flush with your spa surface. The slightly oversized top neatly covers the installation hole for a tidy, professional look.
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Easy, secure installation: Comes with a locking nut and a seal for a watertight fit in a standard 35 mm hole, ensuring reliable function without water ingress or wiggle over time.
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Watertight reliability: The combination of the locking nut, seal, and corrosion-resistant top is designed to stand up to spa humidity, splashes, and routine maintenance—so you can trust it to perform when you press.
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Practical, plug-and-play functionality: Specifically designed to replace worn or failing actuators in pneumatic air switch setups, restoring crisp actuation and dependable response without rewiring or complex installation.
Why this matters: In spa systems, a precise, consistent actuation is essential for predictable operation of jets, lights, and control features. The CRB Air Plunger delivers a tactile, responsive press, reducing ambiguity in signal delivery and minimizing downtime caused by unreliable switches. Its robust construction and standard mounting dimensions mean you can refresh aging spa controls without replacing entire panels or systems.
Ideal for: Spas, hot tubs, whirlpools, and bath systems that rely on pneumatic air control switches. Whether you’re upgrading a tired control panel or repairing a faulty actuator, the CRB is purpose-built to restore smooth operation with minimal hassle.
Usage tips:
- Ensure the 35 mm installation hole is clean and free of debris before fitting.
- Thread the locking nut evenly and tighten just enough to secure the top without warping the spa surface.
- Pair with the included seal for a watertight seal around the mounting hole to guard against moisture ingress.
With the CRB Air Plunger, you get a focused, purpose-built solution that enhances reliability, simplifies maintenance, and preserves the clean, modern look of your spa top. If you’re servicing pneumatic spa controls, this replacement actuator is designed to deliver consistent performance now and for years to come.
