Balboa VL200 4 Button Mini Oval Touchpad Control Panel Keypad - B-52144
Balboa VL200 4 Button Mini Oval Touchpad Control Panel Keypad - B-52144 is temporarily out of stock and will ship as soon as it's available.
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Balboa VL200 4 Button Mini Oval Touchpad Control Panel Keypad - B-5...
Balboa VL200 4 Button Mini Oval Touchpad Control Panel Keypad - B-52144 is temporarily out of stock and will ship as soon as it's available.
Balboa VL200 4 Button Mini Oval Touchpad Control Panel Keypad - B-52144
Balboa VL 200 aka Panel E4 mini oval touchpad panel with LCD display. Also replaces the older 3-button touchpads. Used on many spas in Australia. Spa Industries, SCS, Signature, Designer, Cyclone, Leisurite, Spas Direct, Heritage, Bullfrog, and others. Configuration: LCD display to left, 4 buttons - Blower, Jets, Temp, Light. Suits GS501Z, SCS501 and other Balboa 5-series controllers.
Comes with standard Balboa "universal" overlay, but you can purchase other overlay sticker separately here.
- Physically Stocked, unlike most "drop-shipping" websites.
- Shipped from VIC, NSW, WA, QLD
Faulty touchpads are often the source of a GS/VS controller switching on and off repeatedly, or “pulsing.”
These are rebranded by many spa manufacturers using various overlay stickers.
Dimensions:
- Width: 110mm (wide)
- Height: 40mm (tall)
- Hole size required: 95mm x 25mm, rounded ends.
Other Balboa GS501Z Parts:
- VL200 User Manual
- Complete GS501Z controller with heater, touchpad, and light
- Heater Assembly
- PCB Circuit Board
- Touchpads: VL401 (4 button rectangle) | VL401 Lite (3 button rectangle) | VL200 (3 or 4 button Oval)
- Temperature Sensors
B-52144, 52144, 33441, panel e4 bath w/lcd
In plumbing, named sizes are not the actual measurements. A pipe called “50mm” or “2"” does not measure 50 mm across. Instead, it follows nominal sizing, an internationally-standardised naming system.
Use the Outside Diameter (OD) to check your pipe against fittings. Below is a quick reference for common spa & pool pipe sizes:
| Imperial Name | Metric Name | Pipe Diameter (OD) |
|---|---|---|
| 1/2" | 15mm | ~21.2–21.5 mm |
| 3/4" | 20mm | ~26.6–26.9 mm |
| 1" | 25 mm | ~33.4–33.7 mm |
| 1.5" | 40 mm | ~48.1–48.4 mm |
| 2" | 50 mm | ~60.2–60.8 mm |
| 2.5" | 65 mm | ~75.2–75.5 mm |
These are nominal sizes and are designed to fit matching fittings — not to measure exactly what their name suggests. These are based on PVC Pressure Pipe AS/NZ 1477 Dimensions1.
- º Internal diameters vary slightly by manufacturer and class.
- 1 Not all pool/spa fittings match these dimensions exactly. Some do not follow Australian or international standards. Chinese spas may use proprietary fittings.
Understanding Plumbing Sizes & Nominal Measurements
Plumbing sizes can be confusing. PVC and many other pipe systems use nominal sizes—the size is a name, not the exact measured dimension. This convention is used across most pool and spa systems so that pipes and fittings remain compatible.
Why pipe sizes don’t match the measurements
The Nominal Pipe Size (NPS) system standardises pipe dimensions so that pipes, fittings, valves, and accessories interoperate. Plumbers work with these nominal names every day, but DIYers can be tripped up if they try to match by a tape-measure alone.
How to Measure Pipe Correctly
-
Pipe size is identified by:
- The pipe’s Outside Diameter (OD).
- The fitting’s Inside Diameter (ID) (socket opening).
- Pipe Class / Schedule (e.g., Class 9, 12, 18 or Sch 40) relates to wall thickness and therefore the Internal Diameter (ID) and pressure rating.
- The outside diameter of a fitting is not useful (wall thickness varies by manufacturer).
Hose & Tube Dimensions
Common flexible hose sizes used in pool/spa systems (approximate IDs).
| Imperial Name | Metric Name | Inside Diameter (ID) |
|---|---|---|
| 3/8" | 9–10 mm | ~9 mm |
| 3/4" | 19 mm | ~19 mm |
BSP – British Standard Pipe Thread Sizes
BSP thread names are also nominal. The thread OD will not equal the nominal name.
| BSP Thread Size Naming | Outside Diameter (mm / inch) | TPI |
|---|---|---|
| 1/16" BSP | 7.7 mm / 0.304" | 28 |
| 1/8" BSP | 9.7 mm / 0.383" | 28 |
| 1/4" BSP | 13.16 mm / 0.518" | 19 |
| 3/8" BSP | 16.66 mm / 0.656" | 19 |
| 1/2" BSP / 15 mm | 20.99 mm / 0.825" | 14 |
| 5/8" BSP | 22.99 mm / 0.902" | 14 |
| 3/4" BSP / 20 mm | 26.44 mm / 1.041" | 14 |
| 7/8" BSP | 30.20 mm / 1.189" | 14 |
| 1" BSP / 25 mm | 33.25 mm / 1.309" | 11 |
| 1-1/4" BSP | 41.91 mm / 1.650" | 11 |
| 1-1/2" BSP / 40 mm | 47.80 mm / 1.882" | 11 |
| 2" BSP / 50 mm | 59.61 mm / 2.347" | 11 |
| 2-1/4" BSP | 65.71 mm / 2.587" | 11 |
| 2-1/2" BSP | 75.18 mm / 2.960" | 11 |
| 3" BSP | 87.88 mm / 3.460" | 11 |
| 4" BSP | 113.03 mm / 4.450" | 11 |
| 5" BSP | 138.43 mm / 5.450" | 11 |
| 6" BSP | 163.83 mm / 6.450" | 11 |
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B-52144