Water Pro BP100 Low-Flow Retrofit Spa Pack – 5.5 kW Low-Flow Heater, TP200 Topside
Complete Water Pro retrofit control system by HydroQuip with a low-flow canister heater — the drop-in way to modernize an older low-flow spa (early Artesian, Hot Spring, Jacuzzi, Sundance, Caldera and similar). Part number 50-BP1-200-55-C.
What is a low-flow system? Older and some premium spas (early Artesian, Hot Spring/Watkins, many Jacuzzi, Sundance, Caldera and Dimension One models) heat with a small 24-hour circulation pump instead of a high-flow jet pump. Those spas need a low-flow heater — a standard 2″ flow-through heater will not see enough water flow to heat safely.
Features
- Water Pro BP100 Series Retrofit Kit
- Water Pro BP100 Series Control System with 5.5kW Low Flow Canister Heater and TP200 Topside Control
- With 5.5KW Low Flow Heater
- 12V Light Assembly
- M7 Technology Equipped
- Topside Control – TP200
- All Circuits Convertible to 120 or 240VAC
- Amp Receptacles
- Freeze Protection
- Easy To Install & Service
- Installation Kit (see below)
- Detailed Owner’s Manual & Wiring Diagram
- US and Canada UL Recognized
- Topside Control
- Topside Overlay
- Topside Adapter Plate
- 12V Light Assembly
- 2” Tailpieces w/Gaskets
- 3 years from sale date to industry professionals
- 2 years from sale date to consumers
Specifications
- Model: Water Pro BP100 Series
- System Supports: Pump1 + Blower or Pump2
- System Voltage: 115/230V
- Heater Version: Low Flow Canister
- Heater Wattage: 5.5kW
- Topside Included?: TP200
- Special Features: Circulation Pump = Supported, Wi-Fi Capable
*Manufacturer reserves the right to make production changes. Actual product received may vary slightly in appearance but the function remains the same.
✅ Not Sure It Fits? Verify Before Ordering
Hot tub part compatibility can vary by spa brand, model, year, serial number, control system, and part revision.
To help us identify the correct replacement part, please send clear photos of:
- Your existing part label or sticker
- Your spa serial number sticker
- The equipment area or installation location (if accessible)
EZ Hot Tub Parts can help confirm fitment before you order and help reduce costly returns.
Compare the part number 50-BP1-200-55-C with the label on your old part, and match the style, wattage and connections. Not sure? Send photos through the fit-check form above and we will confirm before you order.
Low-flow spas heat with a small circulation pump running most of the day, and the heater is a small canister or tube (square back, trombone, double barrel, vertical) instead of a 15" long 2" flow-through tube. Send us a photo of your equipment and we will tell you.
Yes — spa pack orders include phone help from our techs during the install.
In-stock items ship from the manufacturer, usually within 1–2 business days. Orders over $99 ship free in the lower 48.
50-BP1-200-55-C water pro bp100 low-flow retrofit spa pack – 5.5 kw low-flow heater, tp200 topside low flow heater
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