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Spa Parts Made Simple

Pumps, heaters, control boards, and replacement parts — without the confusion.

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✔️ Real OEM & compatible spa parts
✔️ Fast shipping from the USA
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✔️ Trusted by spa owners since 2015

Not sure which part fits your spa?

We make it easy to find the right replacement part — without guessing.

  1. Find your spa model
  2. Match the part number
  3. Order with confidence
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SpaShopper makes it easy to find quality hot tub and spa replacement parts without the frustration. From spa pumps and heaters to control boards, jets, filters, and plumbing components, we stock parts that fit a wide range of popular spa brands. Whether you’re fixing a heating issue, replacing a worn pump, or upgrading aging components, SpaShopper helps you get your spa running again quickly and confidently.

Heater Gaskets and O-Rings

Heater gaskets and O-rings are essential sealing components that prevent water leaks, air leaks, and pressure loss at critical points in hot tub and spa heater systems. These include manifold-to-union gaskets, element mounting O-rings, pressure switch seals, tailpiece/tailpiece gaskets, union split-nut O-rings, sensor grommets, and hi-limit thermowell seals—ensuring tight, reliable connections under heat, pressure, and chemical exposure.

This category features a wide selection of replacement heater gaskets and O-rings compatible with major brands: Balboa (M7/VS/BP series), Gecko (in.ye/in.stream), HydroQuip, Sundance/Jacuzzi, Watkins/Hot Spring No-Fault, Brett Aqualine, ACC/CTI, and universal fits. Materials include high-temperature silicone, Viton (fluorocarbon for better chemical resistance), EPDM (standard for hot water), Buna-N, and specialty compounds. Common items: 1-1/2" and 2" union O-rings (split-nut/tailpiece), heater element O-rings (for screwplug/flange), manifold end-cap gaskets, pressure switch diaphragms/seals, and sensor port grommets.

These gaskets and O-rings vary by size (ID/OD/thickness), material (silicone for heat, Viton for chlorine/salt resistance), cross-section shape (round, flat washer-style, or molded), and application (union, element, sensor, switch)—precise matching is crucial to avoid leaks, swelling/degradation, or improper compression.

Common problems include dripping/leaking at unions or element mounts from hardened/cracked O-rings, air leaks causing pump priming issues or flow errors (FLO codes), pressure switch failures from swollen or perished seals, water intrusion at sensor ports leading to shorted sensors, or reduced heater efficiency from minor leaks. Replacing heater gaskets and O-rings is a simple, low-cost preventive maintenance step—often done during element or assembly service to restore watertight performance.

To find the right heater gasket or O-ring:
- Identify your spa brand/model, heater type (flow-thru, low-flow, L-style), manifold/union size (1-1/2" or 2"), application point (union, element thread, pressure switch, sensor), and any visible part numbers or markings.
- Note leak location, O-ring condition (cracked, flattened, swollen), or related error codes.
- Avoid guessing—send us clear photos of the leaking area, old gasket/O-ring (showing size, material if marked, compression state), manifold/union, and spa label (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 heater gaskets and O-rings today to stop leaks, prevent air issues, and keep your spa heater system sealed and efficient.

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