Quick Answer: Match the valve to your tub type, not a generic “hot tub drain valve” search. Intex PureSpa owners want the official Intex 13076 Spa Drain Plug ($2 direct from Intex). Coleman and Bestway SaluSpa owners need a River Country P61813-style drain adapter, since Bestway doesn’t sell its own drain fitting separately. Hard-shell, hardwired spas — AquaRest, Lifesmart, and most 240V models — standardized on the Waterway 400-2070 0.75-inch slip-by-garden-hose valve ($17), the same part sold for in-ground pools.
A cracked drain plug or a valve that won’t seal is one of the most common small failures on an aging hot tub — cheap to fix, but only if you order the right part. Unlike most hot tub components, there’s no single universal drain valve: inflatable tubs use brand-specific fittings sized to their liner, while hard-shell spas mostly share one industry-standard part. Here’s how to tell which you need and what to actually buy.
Hot tub drain valves by the numbers
- ~$2 is the price of Intex’s own 13076 Spa Drain Plug, the OEM replacement listed across 23+ current and discontinued PureSpa and SimpleSpa models on intexcorp.com — one of the cheapest single parts sold for any hot tub.
- $16.95 is the going price for a Waterway 400-2070 0.75-inch slip-by-garden-hose drain valve, consistently priced within a dollar of that across Sunplay, Pool Warehouse, and Hot Tub Warehouse — evidence of how standardized this part is across hard-shell spa brands.
- 45-90 minutes is how long a gravity drain valve alone takes to empty a 300-400 gallon residential spa, per our how to drain a hot tub guide — the valve itself doesn’t speed this up, but a cracked or partially clogged one slows it down further.
- 0.75 inch is the slip-fitting size on the Waterway valve that’s become the de facto standard across most hard-shell spa cabinets, which is why one replacement part covers so many different spa brands.
Hot tub drain valve options compared
| Valve/adapter | Best for | Fitting type | Typical price |
|---|---|---|---|
| Intex 13076 Spa Drain Plug | Intex PureSpa | Brand-specific barbed plug | ~$2 |
| River Country P61813 Drain Adapter | Coleman / Bestway SaluSpa | Brand-specific hose adapter | ~$10-15 |
| Waterway 400-2070 | AquaRest, Lifesmart & most hard-shell spas | 0.75" slip x garden hose | ~$17 |
| Cabinet flush-mount spa drain valve | Hard-shell upgrade/retrofit | Universal exterior mount | ~$15-25 |
1. Intex 13076 Spa Drain Plug — Best for Intex PureSpa
Intex 13076 Spa Drain Plug
- Official Intex replacement drain plug, listed directly on intexcorp.com's parts catalog.
- Covers PureSpa Bubble Massage, PureSpa Plus, PureSpa Greywood Deluxe, PureSpa Jet and Bubble Deluxe, and SimpleSpa lines.
- Costs about $2 — check your model number against Intex's compatibility list before ordering, since fittings vary slightly across generations.
- A cracked or missing plug is one of the most common small leaks reported on inflatable spas after a season or two of use.
If your spa is a PureSpa-family Intex, this is the only part to buy — it’s inexpensive enough that most owners just replace it preventively rather than nursing a slow leak through a season. Confirm the exact model number in Intex’s compatibility list first, since the barbed fitting has changed slightly across PureSpa generations. Our best inflatable hot tub roundup covers which current Intex models this fits.
2. River Country P61813 Drain Adapter — Best for Coleman/SaluSpa
Ordering a $10 part shouldn’t need a special trip — try Prime free for 30 days and get it delivered in two days instead of waiting out a slow leak.
River Country Lay-Z-Spa Hot Tub Drain Adapter (P61813)
- Third-party replacement built specifically for Coleman and Bestway SaluSpa drain fittings.
- Fills the gap left by Bestway's own parts catalog, which doesn't list a standalone hot tub drain valve or adapter.
- Threads onto the tub's existing drain port and adapts it to a standard garden hose.
- A simpler, cheaper fix than replacing the whole drain assembly on the liner.
SaluSpa and Coleman owners are in a slightly odd spot: Bestway sells liners, covers, filters, and heater-pumps directly, but not a standalone drain valve. Third-party adapters like this one fill that gap. Check our best Coleman SaluSpa hot tub roundup for which current models use this same drain fitting.
3. Waterway 400-2070 — Best for Hard-Shell Spas
Waterway 400-2070 0.75" Slip x Garden Hose Drain Valve
- The de facto standard drain valve across most hard-shell, hardwired spa cabinets, not a brand-specific part.
- 0.75-inch slip fitting on one side, garden-hose threading on the other, with a built-in on/off handle.
- Priced consistently around $17 across Sunplay, Pool Warehouse, and Hot Tub Warehouse.
- Also sold as an in-ground pool part, since the fitting is identical — a sign of how commoditized this component is.
If you own an AquaRest, Lifesmart, or most other 240V hard-shell spa, this is very likely the exact part already installed low on the cabinet. Unlike inflatable-tub fittings, hard-shell spa manufacturers didn’t standardize on their own proprietary valve — most just spec this same Waterway part, which is why it’s sold under the pool-parts aisle as often as the spa aisle. See our best plug-and-play hot tub guide for the AquaRest and Lifesmart models this fits.
4. Cabinet flush-mount spa drain valve — Best Universal Upgrade
If your existing valve’s plastic has gone brittle, or you’re retrofitting a spa that never had a proper exterior valve, a flush-mount cabinet drain valve is a straightforward upgrade rather than a like-for-like replacement. It mounts through the cabinet skirt so the spout pulls out and a garden hose threads straight on, without reaching inside the equipment bay to access the plumbing. This is the pick when you’re not sure exactly which OEM part your spa originally shipped with, or when the original fitting is damaged beyond a simple part swap.
How to choose in three questions
- What kind of tub do you have? Inflatable Intex → the Intex plug. Inflatable Coleman/SaluSpa → the River Country adapter. Hard-shell hardwired spa → almost certainly the Waterway valve.
- Is the valve actually broken, or just the seal? A slow drip around the fitting is usually a worn O-ring, not a cracked valve body — check that first, since it’s a cheaper fix.
- Retrofitting or replacing like-for-like? Replacing the exact part that failed → order the matching brand-specific plug or valve. Adding a proper exterior valve where there wasn’t one → the universal flush-mount option.
The bottom line
There’s no single “best hot tub drain valve” — the right part is whichever one matches your tub’s brand and construction. Intex owners should order the Intex 13076 plug directly, SaluSpa and Coleman owners need the River Country adapter, and almost every hard-shell hardwired spa owner will find the Waterway 400-2070 is either already installed or the correct replacement. Whichever you order, check your exact model number against the compatibility list first — inflatable-tub fittings especially have changed across generations, and a mismatched part won’t seal no matter how well it’s installed. Once the valve’s sorted, our how to drain a hot tub guide covers the rest of drain day, and our hot tub winterizing guide covers what to do with that valve before the first freeze.