More Details about the M8

Featuring the first-of-its-kind double lounge seat, along with the most flexible seating array ever offered in a spa this size, the M8 creates a remarkable and unmatched spa experience. You're sure to love stretching out, lounging, splashing with the kids, sitting up for a chat, or simply closing your eyes and escaping the world, all in the same place, your M8 spa. Combine this amazing versatility with simple water care, easy operation, not to mention the gorgeous design that enhances your backyard environment, and you may never want to leave your new M8 hot tub by Bullfrog Spas.

Size: 7′ 10" (2.39m) x 7′ 10" (2.39m) x 38" (.97m)
Therapy Pumps: 3
Multi-Function Auxiliary Controls: 3
Dry Weight: 1024 lbs/464 kg
Filled Weight: 6249 lbs/2834 kg
Water Capacity: 474 gal/1794 L

    Full Specs

    Standard Dimensions (W x L x H)7'-10" x 7'-10" x 38"
    Metric Dimensions (W x L x H)2.39m x 2.39m x .97m
    Total Seats9
    Bucket Style Seats4
    Lounge Style Seats2
    Elevated Seats2
    Water Capacity (to normal fill line)474 Gallons (1794 Liters)
    Dry Weight (includes Cover)1024 lbs (464 kg)
    Maximum Filled Weight (includes Cover)6249 lbs (2834 kg)
    EnduraFrame Construction/Full-Foam/Molded BaseStandard
    M Series Premium Patio Performance Spa Cover (w/ smart sensor technology)Standard
    M Series Spa Cover LiftStandard
    M Series Premium Spa StepsOptional
    M Series Premium Spa CabinetStandard
    High-Performance 2-Speed Jet Pumps3
    Dedicated Circulation PumpStandard
    M Series Audio *Optional
    M Series Adjustable HeadrestsStandard
    Simplicity™ Filtration SystemStandard
    Simplicity™ Flat FilterStandard
    EOS™ 03 Premium Water Care SystemStandard
    M Series Premium Interior LED LightingStandard
    M Series Premium Control-activated Water FeatureStandard
    M Series Premium Exterior LightingStandard
    Exterior Drain w/ Footwell Drain FittingStandard
    M Series JetPaks6, Standard
    M Series Premium JetsStandard
    Hidden Water Return Fittings in JetPodsStandard
    Foot, Wrist, Hip, Leg, Elevated Seat Therapy Jets36
    Maximum Jets Available288

    * rich surround sound, hidden in-shell speakers, sub-woofer, Bluetooth compatibility, track and volume adjustment through main control, volume adjustment through multi-function auxiliary controls

    Warranty Info

    Lifetime Warranty

    EnduraFrame™ Support Structure

    Bullfrog warrants the EnduraFrame (injection- molded spa frame) against degradation for the life of the original retail purchaser of the spa.*

    10-Year Warranty

    Shell Structure

    Bullfrog warrants the Bullfrog Spa shell not to leak for ten years from the original spa purchase date.*

    7-Year Warranty

    Shell Surface

    Bullfrog warrants the surface finish of the Bullfrog Spa not to crack, wrinkle, blister, peel or delaminate for seven years from the original spa purchase date.*

    5-Year Warranty


    Electrical and mechanical equipment with its associated piping and fittings warranted against defects in materials and workmanship for five years from purchase date.*

    EternaWood™ Cabinet

    EternaWood™ Cabinet sections (corners, doors, side panels) & EnduraBase™ are warranted against degradation and cracking for five years from purchase date.*

    JetPak Therapy System™

    Warranty covers the jets, any leaks from JetPak jet fittings, and all JetPak plumbing. JetPak plumbing System warranted for five years from purchase date.*

    3-Year Warranty

    Patio Performance™ Spa Cover

    Bullfrog warrants the Patio Performance spa cover against defects in materials or workmanship not determined to be regular fading or wear for 3 years from the original spa purchase date.*

    1-Year Warranty


    Bullfrog warrants the Interior and Exterior Spa Lighting System against defects in materials and workmanship for one year from the original spa purchase date.*

    Audio System

    Bullfrog warrants the Bullfrog Elite Audio and Life Audio Systems against defects in materials and workmanship for one year from the original spa purchase date.*

    Ozone System

    Bullfrog warrants the ozone system against defects in materials and workmanship for one year from the original spa purchase date.*
    *See the Bullfrog Spas warranty page for complete warranty information on your specific spa model, including limitations and definitions.

    Bullfrog Spas Warranty Page

    See the M8 In Your Backyard

    Reviews for the M8

    by Bullfrog Spas

    This M8 Hot Tub is our second product from Bullfrog. The first Hop Tub worked great, good filter system, speakers had to be replaced often so they are not worth the cost. Our new M8 Hot Tub continues to be a problem. One of the Multi-function auxiliary control panels has a LED the is always RED. I reported it months ago to the dealer but no fix haRead more about review stating M* Hot Tube Over Priced and Poor Qualitys been provided. Filter system is the worst every. The manual provided only shows the cartridges style but the M8 has these month replaceable accordion style that will not stay in place. Jet motor 2 is loader than the other two motors but the dealer says it is fine. I don't think so. Lastly the Hot Tub continues to trip the circuit breaker on hot days. We live in Florida so HOT DAYS are normal. Election says it's the Hot Tub. The dealer cannot find out what is wrong because when he visits the Hot Tub is working fine. In closing we love the M8 look and jet packs but the quality and the service is why we are giving the M8 Tub a low score. We are hoping that the warranty will not run out before we have all problems fixed. Bull Frog recommend that you develop a modification to install the cartridge style filter for the M series Hot Tub.

    M* Hot Tube Over Priced and Poor Quality

    Rick B.

    I like my hot tub very much, however there's a few things that Bullfrog needs to improve on. First, the snaps that hold the cover down are poor quality. They're made of plastic and will need to be replaced due to simple use. Secondly, the bars that hold the cover while hot tub is in use are poor quality and potentially will damage the hot tub. EveRead more about review stating M8 Bullfrog Hot Tub. Everything else about my Bullfrog hot tub is very nice!

    M8 Bullfrog Hot Tub

    SUSAN H.

    Issues I've had:
    I'm still stuck without a step. I paid $1,000 for a step which already had me less than thrilled with the price for some steps (a month later and no ETA). The one I got wasn't to tolerance - the steps were too wide and wouldn't seat all the way leaving the support bars unable to be joined. On top of that, they want me to Read more about review stating $24k and 30 days in, all kinds of problems and lacking supportassemble it myself, which isn't the end of the world but it's pretty crude for this purchase. The installers did look at the step and agreed it wasn't right. I sent it back with them. I'm still waiting for the replacement but when I checked today, the order status was simply "open" with no ETA.
    The side of the hot tub is bowed by a little over 1/2 inch on one side. Apparently it will be submitted for warranty. I've was given a roughly two week ETA. Its been a month and not a word from them.
    The wifi adaptor that plugs into my ethernet was in the tub, not sealed. Consequently, the water in there from the wet test drenched it making it useless. This got replaced a week later.
    The LCD on the hot tub worked for half a day and started to band before dying completely. That has been replaced and is working.
    The dealer wasn't open on Friday afternoon despite it being well within their business hours. Haven't followed up on the bowing of my spa.
    Last night the spa / open / closed stopped working - it seems it is because the cover warped at the corners. Again - its been a month.
    I believe all of these issues will be fixed and the dealer has been responsive but for the price, including the step, I shouldn't have any one issue on day 1, let alone four significant issues.

    The problem I have is that these are general QC issues from Bullfrog which does have me concerned about what else may be prone to failure. The disappointing part is that the spa, when in use, is great but I've used it nearly every day and still have spent more of my time trying to get it to the condition it should have arrived in. The spa should help me relax - its doing quite the opposite of that.

    $24k and 30 days in, all kinds of problems and lacking support

    Jason L.

    We got our spa delivered yesterday. Really very disappointed with the product. The $1,000 (way overpriced) steps weren't to tolerance and had to be sent back because the steps wouldn't seat completely. The side of the hot tub is bowed by more than a half inch. They took note at delivery and said the retailer would get back to me. The entire next dRead more about review stating Quality control just isn't there for a $20k+ spaay without a word. Today, the electrician hooked it up and the breaker immediately trips. There is either a bad wire or the board is broken. For such an expensive spa, the quality control is terrible. To add to it, when I tried to get help or guidance, the retailed didn't pick up their phone. I drove there only to find they weren't open. This was two and a half hours before their posted close time. I would suggest passing on Bullfrog until they get the QC and support fixed.

    Quality control just isn't there for a $20k+ spa

    Jason L.

    Great Jets. Awesome Spa.

    Amazing Spa

    The last review I posted was deleted (in violation of The Consumer Review Fairness Act). I am documenting this post and will report to the FTC / state AGs if it happens again

    • Below is my honest opinion about the M8 we purchased in April 2021, for near ~$20k we were expecting a top-of-the-line product but was met with something a little underwhelming.1. Bullfrog prides itself on unique modular spa seats, but the plastic retention pieces that came with the spa were weak and defective, we had only swapped perhaps 4 or 5 seats, and 3 headrest retention clips broke off (well, one came broken), those were easy to replace enough but 1 of the seat retention clips also snapped during a seat swap, rendering the seat unusable until we secured a replacement. Replacing the clip was difficult as it required chiseling away all the messy spray insulation foam behind each panel. Now we simply don't replace or move seats for fear of breaking some thing again. *To be fair, we were told by our dealer that Bullfrog has replaced the retention clips with sturdier plastic, which we purchased out of pocket. Imo with a true "elite luxury" line, a headache like this would not have occurred.
      2. The touch screen panel has a difficult user experience and is missing various settings. For instance, there is no way to dim the lights without using the app, and upon a power cycle the settings reset. Moreover, the touch screen has no method of a manual lock screen, it does automatically locks itself after a long period of time, and to unlock it you swipe an icon into a box. But this is flawed because condensation from the cover drips down onto the screen and effectively triggers random touch presses. On several occasions we caught the spa waking itself up due to water droplets on the screen, trigger the pumps to go On/Off repeatedly. To alleviate this we have to remember to go in the settings menu and do a "Full Lock" with a pass code each time.
      3. The spa control malfunctioned and heated up to 107+ on a few occasions which did (and should) trigger a lockout. We are not sure why and had to reset the circuit breaker or just wait for the spa to cool down. This might have been related to the touch screen not being locked. Just another moment when I expected quality and was met with headache and worry instead.
      4. Finally, the high price tag on the M series is largely attributed to its aesthetics, but the veneer wood finish on the cabinets began to fade after only 8 months. Now instead of a beautiful (faux) wood grain exterior, we are left with splotches of faded white and grey plastic, the brown color has faded to some degree on each of the corner cabinets in the mid section, indicating some kind of a manufacturing/finishing defect. We are working with our dealer to get this refinished or replaced.
      All-in-all I would think twice before spending your money on a high-dollar M series spa, maybe go with a cheaper R series with the same strong jets, or go with a more quality line altogether. I wish I had done more research before being sold on the shiny veneer (that didn't last) and the swappable jets (that I'm afraid to swap)

    The M series is a mere pretender to "elite luxury"

    Anthony K.

    I thought I was buying top of the line but I did not (I got the M8). I bought this to be able to control the temperature remotely because this hot tub has to make it through freezing northern winters, but the remote access (in.touch) system is flawed an only connects to the spa 25% of the time. Aside from poor quality and unclean finishing touches, less than two months after getting it, the keypad controller died on me (in October). This means that I am going into the winter with no way to control the temperature or even see what it is. I am very afraid of what the winter will bring for this hot tub

    couldn't be more disappointed - controller died - no way to control temp


    Purchasing a spa during the supply chain issues COVID brought all of us, was interesting to say the least. Once we finally found Bullfrog, we were sold! Researching, measuring, and visiting the showroom at least three times - we settled on the M8. It was WELL worth the wait!!
    We have shuffled our jet packs a few times now, and I think we finally found the best combination for our needs - even saying this just tells you how important this feature really is, since no other spa we saw had this technology. The chemicals have been very easy to use, and we even added in an additional skin softening regimen that has really helped my skin.
    It's been a great additional to our home, and it's not even spa season - yes, I'm a crazy person who has been using it in 108 degree heat (spa set to 101 so at least it's cooler than the air temperature)! I'm an interior designer, so for me to find a spa that I didn't want to hide... that was a real win! The style of the M8 and finishes were FANTASTIC!! Couldn't believe it! The Frame and color blend in perfectly into our backyard.
    Overall, we 100% made the right choice!

    We made the right choice!

    We made the right choice!

    Rachel A.

    The price of the hot tub is really expensive. The jets are nice but the external panels are difficult to connect. It's like the design is flawed. Please come up with a better design to hang side panels. Also head covers have broke at the connection multiple times. Need to rethink that design. The hooks that the jet pack connect to have broken. Furthermore the external lights are flawed and don't turn off. They stay on all the time.

    Not very good

    David M.

    I am a previous owner of a Bullfrog Hot Tub, so I understand the difference of what else is offered in the market. This is a top-of-the-line performer. Customizable, with strong motors that can move a bunch of water. Six different seat backs, each that provide a different feel. I love my new Spa.

    Still Great as I remember

    Wayne S.