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Waterway Swing Check Valve Tee 1" Sl X 1" Sl
Was: $19.12Now: $14.95 -
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Flo Control Swing Check Valve, 2" sl, Clear, 1520C20
Was: $82.90Now: $75.95
Check Valves
Check valves are one-way plumbing valves that allow water or air flow in only one direction, preventing backflow, contamination, or siphoning in hot tub and spa systems. These include standard spring-loaded check valves, swing check valves, and high-flow check valves—essential for ozone lines (prevents water into ozonator), air blower lines (prevents water into blower), drain lines, and heater bypasses to protect equipment and maintain proper flow.
This category offers check valves compatible with major spa brands: Sundance (ozone/air check valves), Jacuzzi (blower/drain lines), Hot Spring/Watkins (No-Fault check valves), Balboa (universal check valves), HydroQuip, Dimension One, Caldera, Waterway, and universal fits. Common sizes: 1/4", 3/8", 1/2", 3/4", 1", 1-1/2", 2" (barbed, threaded MPT/FPT, or slip ends), with PVC/nylon body and Viton or EPDM seals for chemical/heat resistance.
Check valves vary by size (1/4"–2"), type (spring-loaded, swing, ball check), connection style (barbed, threaded, slip), material (PVC standard, nylon high-pressure), seal type (Viton for ozone/chemicals), and spa-specific compatibility—precise matching ensures no backflow, leak-free operation, and proper pressure rating.
Common problems include backflow (water into ozonator/blower from failed check valve), leaks from cracked body or worn seals, restricted flow from clogged or stuck valve, air/water contamination (reverse flow), or pump priming issues from improper valve direction. Replacing check valves is quick maintenance—install inline with correct flow direction—for protected equipment and safe, clean water.
To select the right check valve:
- Identify your spa brand/model, year, valve location (ozone line, air blower, drain, heater bypass), size (tubing/pipe diameter), connection type (barbed/threaded/slip), and any markings on the existing valve.
- Note symptoms (backflow into ozonator/blower, leaks at valve, restricted flow, air in lines), or visible damage (cracked body, stuck mechanism).
- Avoid guessing—send us clear photos of the valve/plumbing (showing valve body, arrow direction, connection ends, pipe/tubing size, and spa label with model/serial number) for expert verification.
**Text or send photos to: 772-800-5445**
**Or call us at: 844-500-4645**
We'll confirm compatibility before you order.
SpaShopper is not affiliated with any spa manufacturer. Brand names and part numbers are used for compatibility and identification purposes only.
Shop our check valves today to prevent backflow, protect ozonators/blowers, stop leaks, and keep your hot tub plumbing safe, clean, and efficient.