Which Balboa Topside Control Do I Need? A Compatibility Guide

Last updated: September 2026

Replacing a topside control (the panel with the buttons that runs your jets and sets the temperature) is a job most of us hot tub owners will have to do at some point.

The swap itself is easy. You turn the power off, unplug the old one from the spa pack and plug the new one in. The hard part is buying the right one, because a topside that doesn’t match your spa pack will either not fit or, worse, plug in perfectly and then do nothing at all. It’s a bit of a minefield, so this guide clears it up. It covers the Balboa range only.

Step one: find your spa pack model

Everything depends on which spa pack you have, so find that first. The model is on the label on the outside of the pack’s box, and usually on the circuit board too. Hot tub makers often rebrand Balboa packs, so don’t go by the name on the tub. Go by the Balboa model number on the pack.

If the label has worn off or you’re not sure what you’re looking at, my guide on how to identify a Balboa circuit board walks you through it.

Once you know the model, it will fall into one of three families. Here’s the whole picture at a glance:

The easy one: Balboa BP packs

I think Balboa realised what a minefield it had created, and from around 2015 it made things a lot easier with the BP range of spa packs. There are quite a few of them: the BP100/200, BP501 (North America) and BP601 (Europe), the BP2000 (North America) and BP2100 (Europe), and the newest aftermarket packs, the BP7 for North America and the BP8 for Europe.

The BP range standardised the topside connection. If you have a BP pack, you can use Balboa’s current interfaces:

• TP push-button panels: the TP2 series (TP200, TP240, TP260), TP5 series (TP500, TP500S, TP540), the TP600, and the colour-screen TP700/TP740. Older TP400, TP800 and TP900 panels also work, but retailers now list the TP800 and TP900 as discontinued.
• spaTouch touchscreens: the spaTouch 2 (4.3in screen), spaTouch 3 and 3+ (5in and 7in), spaTouch 4 and 4+ (5in and 7in, with WiFi built in) and the little spaTouch Mini (2.8in).

That’s according to Balboa’s current interface range, which says the TP7 series and spaTouch Mini are compatible with its BP series packs.

The catch: firmware

“Compatible” doesn’t always mean “any version”. Balboa’s BP8 tech sheet, for example, lists the TP600 from software version 2.7, the TP400 CE from version 2.7 (and says the US version of the TP400 shouldn’t be used), and the TP500 only on setups with no more than one other piece of equipment besides pump 1. Features like Clim8zone heat pump control need newer spaTouch firmware too. Retailer listings for the spaTouch Mini say the pack needs system software version 7.0 or later.

In practice, if you’re buying a new panel for a BP pack, you’ll get current firmware and it will almost always be fine. The problems come with second-hand or old-stock panels. If in doubt, check the tech sheet for your exact pack on Balboa’s tech sheet page.

Don’t forget the overlay

Many TP panels, including the TP600 and TP700, are sold without the overlay (the printed sticker with the button symbols). The overlay has to match your equipment, for example “2 jets, light, aux” or “3 jets, light, aux”. Order the right one at the same time, or you’ll have a panel with blank buttons.

Not so straightforward: the older VS and GS packs

If you have an older hot tub that you’re keeping alive with new parts, the chances are it has an older spa pack. This is where compatibility gets more complicated.

Two of the most common are the VS (Value Series) and GS (Global Series). Both were supplied to lots of hot tub manufacturers, so you’ll find them under all sorts of different names. Underneath, though, it’s one of these two packs.

The VL range of topside controls was designed for both, but there are rules. What matters is the letters at the end of the model number on the spa pack:

Spa pack model ends in…	Use a VL panel ending in…	Examples
DZ	D	VL801D, VL802D with VS/GS 500DZ to 523DZ
SZ	S	VL600S, VL700S, VL701S, VL702S with VS501SZ, GS510SZ
Z (not SZ or DZ)	Any other VL panel	VL200, VL260, VL401, VL406T with VS501Z, GS500Z

Sources: Balboa VL panel guides and the VL700S listing on parts4tubs.co.uk.

So a VS501SZ spa pack works nicely with a VL700S topside. That same topside won’t work with a VS501Z. The connections are the same, so it plugs in, but it won’t respond at all. Likewise, a GS500Z pack works with a VL406T or a VL401, but not with a VL702S.

You get the pattern: a panel ending in S goes with a pack ending in SZ, and a panel ending in D goes with a pack ending in DZ.

Balboa EL and GL: somewhat standard

Before the BP range, the EL and GL spa packs did have some standardisation. The ML range of Balboa topsides is designed for the EL and GL packs. They look very similar to the TP range, but they have a different connection to the spa pack, so a TP panel won’t plug into an EL or GL pack, and an ML panel won’t plug into a BP.

Can I put a new-style topside on an old pack?

No. A TP or spaTouch panel won’t work with a VS, GS, EL or GL pack. If you want a modern panel, WiFi or a heat pump that the pack controls, the answer is to replace the pack.

Balboa’s retrofit kits are designed for exactly this. The BP7 (North America) and BP8 (Europe) are sold to replace VS, GS and EL-era systems, and most existing BP packs, when paired with a TP or spaTouch panel. You’ll usually need to change some plugs on your pumps and blower, and configure the new pack for your equipment. There’s more on that in how to configure a Balboa spa pack and how to select a replacement spa pack.

If the old panel on an old pack has failed, it’s worth pricing up both options. An old VL panel can cost almost as much as a new TP panel, and a pack plus panel bundle is sometimes better value than keeping a 15-year-old pack going. I cover that decision in Do I need to replace my topside control? and Replace spa pack or just the circuit board?

Which BP topside should I choose?

If you have a BP pack, you’ve got a real choice. Here’s how I’d think about it:

Panel	Display and controls	Good for
TP200/TP500 series	Small LED/LCD display, few buttons	Simple tubs with one or two pumps
TP600	LCD with scrolling text, 6 buttons	The workhorse. Multi-pump tubs on a budget
TP700/TP740	2.8in colour screen, physical buttons	Easy menus without a touchscreen. My pick for most tubs
spaTouch Mini	2.8in touchscreen, compact	DIY tubs and tight spots, or as a second panel
spaTouch 3 / 4	5in or 7in touchscreen (spaTouch 4 has WiFi built in)	Premium tubs, Clim8zone heat pumps, app control

If you want to control the tub from your phone, the spaTouch 4 has WiFi built in and uses the ControlMySpa app. With any other panel you’d add a module instead. My ControlMySpa review covers the options.

Common mistakes

• Buying by looks. A VL, ML and TP panel can look almost identical. The model number on the pack is what matters.
• Ignoring the suffix on VS/GS packs. An S panel on a Z pack plugs in and does nothing.
• Forgetting the overlay on panels sold without one.
• Old stock with old firmware, especially TP400, TP600 and spaTouch 2 panels, on a newer pack or with a heat pump.
• Plugging in with the power on. Always isolate the tub first.
• Blaming the panel when it’s the pack. Buttons that turn on the wrong thing usually mean the pack’s setup is wrong, not that the panel is faulty.

Need a part?

We stock Balboa panels, overlays and packs at parts4tubs.co.uk in the UK (see the TP and spaTouch panels) and parts4tubs.com in the USA. Every product page lists what it’s compatible with, so you can check it against your pack’s label before you order.

If you’re building a tub from scratch, pick your pack and panel together, and plan where the panel goes and how its cable gets back to the control room. My DIY hot tub plans include the full parts list and plumbing layout, so you’re not working it out as you go.

FAQs

How do I know which Balboa spa pack I have?

Look at the label on the outside of the pack and on the circuit board. You’re looking for a model such as BP601, BP2100, VS501SZ or GS510DZ. The name of the hot tub brand doesn’t tell you much, because many makers use rebranded Balboa packs.

Can I use a spaTouch or TP700 on a GS or VS spa pack?

No. TP and spaTouch panels only work with BP-series packs. For a modern panel on an old tub, replace the pack with a BP7 (USA) or BP8 (UK/Europe) retrofit kit.

Why does my new VL panel light up but not respond?

Almost always it’s a suffix mismatch. VL panels ending in S need a pack ending in SZ, panels ending in D need a pack ending in DZ, and other VL panels need a pack ending in a plain Z.

Can I have two topsides on one hot tub?

On many BP packs, yes. Some have a second panel socket, and Balboa lists a splitter for the BP8. A spaTouch Mini makes a neat second panel, for example inside a DIY tub’s surround. Check your pack’s tech sheet first.

Do I need a WiFi module with a spaTouch 4?

No. The spaTouch 4 has WiFi built in and works with the ControlMySpa app. Other panels need a separate WiFi module.

Will a Balboa topside work on a Gecko or other brand of pack?

No. Topsides only work with their own manufacturer’s systems, so a Gecko pack needs a Gecko panel.

Not sure which panel you need? Tell me your spa pack model in the comments below and I’ll point you in the right direction.

Cheers,
Andi

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Hi, Andi here. I own Buildahottub.com and also write all of the articles and info pages on the site. Some years back now, I built my own hot tub but struggled to find the information I needed. So, once my tub was complete, I started this website to help others in their own pursuit of hot tub and plunge pools DIY building information.

Fast forward to 2025, I've helped over 1400+ DIY customers just like you all over the world build hot tubs and pools. Have a good look around the site, there are lots of resources here. Please do get in touch if I can help you. - Cheers, Andi