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Part No. G4311

SYSTEM GENUINE BALBOA BP100G2 NO HTR C8Z

By Spa Parts
About This Part

SYSTEM GENUINE BALBOA BP100G2 NO HTR C8Z — a genuine Balboa replacement part for spas and hot tubs. Part #G4311.

This is an authentic Balboa component, stocked and shipped by Sauna Company USA. Order genuine Balboa part #G4311 online with fast shipping, secure checkout, and expert support from our parts team.

  • Manufacturer: Balboa
  • Part Number: G4311
  • Category: Controls & Spa Paks › Spa Controls › Complete Spa Paks
  • Availability: Regular Stock

Detailed Description

The Balboa G4311 (part of the BP100G2 series) is an entry-level, highly versatile hot tub control system. It operates on both 110V-120V and 220V-240V power and is widely used for both new spa setups and retrofitting older systems like the VS100.

Key Features

  • Device Support: Runs a primary two-speed pump, an optional second single-speed pump, an ozonator, and a 12V spa light.
  • Heating_ It utilizes Patented M7 Temperature Probes for extremely reliable and safe temperature readings. The system is typically sold without an attached heater, utilizing a remote 4kW heater manifold (such as the Balboa G7413).
  • Control Compatibility: Compatible with all standard Balboa TP series topside control panels (e.g., TP400, TP600) and SpaTouch panels.
  • Smart Capabilities: Features built-in wireless system control and works with Balboa's bwa™, ControlMySpa™, and Balboa Bluetooth Audio apps
$370.46
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↻30-day returns — a 20% restocking fee applies to spa & hot tub part returns. See return policy.
Technical Specifications
Part NumberG4311
BrandSpa Parts
Item TypePart
CategoryBalboa,Complete Spa Paks,Controls & Spa Paks,G4311,Part #G4311,Spa Controls,
Shipping MethodStandard parcel
AvailabilityIn Stock

Contact us to confirm compatibility with your specific model before ordering.

Installation Overview

General accessory installation — follow all manufacturer instructions included in the package.

  • Verify compatibility with your specific model using the part number before installing.
  • If electrical work is involved, engage a licensed electrician — do not bypass safety interlocks.
  • Use only manufacturer-approved tools and hardware. Substitutions may void the warranty.
  • Test the system at low settings first after any installation or replacement.
  • Register the part with the manufacturer to activate the warranty.
Compatibility & System Requirements

This part is designed for use with:

  • Spa Parts Products

Not sure if this fits your system? Contact us with your model number and we'll confirm before you order.

Frequently Asked Questions
Is this a genuine OEM part?

Yes. Sauna Company USA is an authorized dealer for Spa Parts. All parts sold are genuine OEM components sourced directly from the manufacturer or authorized distributor, not aftermarket substitutes.

How do I confirm this fits my model?

Match the part number (SKU) on the product against the parts list in your equipment's owner manual, or locate the data plate on your unit and compare the model number to the compatibility table above. If unsure, contact us with your model number before ordering.

Can I return this part if it doesn't fit?

Parts & accessories are non-returnable once opened — incorrect parts cannot be resold as new. Please confirm compatibility before purchasing. We're happy to help identify the correct part for your system.

How long will shipping take?

Standard parcel orders ship within 1–2 business days. Estimated transit is 2–5 business days depending on your location. Expedited options are available at checkout.

Shipping & Delivery

Standard parcel shipping — ships within 1–2 business days via UPS or FedEx.

  • Tracking number emailed when shipped.
  • Estimated transit: 2–5 business days depending on destination.
  • Expedited shipping options are available at checkout.
  • Orders placed before 5pm ET on business days ship the same or next business day.

Questions about your order? Email info@saunacompanyusa.com or use our contact page.

Warranty & Returns Policy

Manufacturer Warranty: This part is covered by Spa Parts's standard manufacturer warranty against defects in materials and workmanship. Warranty duration and terms vary by part type — refer to the documentation included in the package or contact us for details.

Returns: Parts & accessories are non-returnable once ordered. This policy exists because installed or opened components cannot be resold as new. Please verify compatibility thoroughly before purchasing — we're here to help.

Defective items: If your part arrives damaged or defective, contact us within 48 hours of delivery. We will arrange a replacement at no charge with proof of the defect (photos or video).

For warranty claims, visit our Warranty Claims page.

Genuine OEM part — authorized dealer
Ships in 1–2 business days
Expert support 10am–10pm ET daily
Manufacturer warranty on all parts

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