InSinkErator Pro750 (Evolution Series) – 3/4 HP Quiet Garbage Disposal
The InSinkErator Pro750 sits in the sweet spot of the Evolution Series. It delivers strong 3/4 HP grinding performance, noticeably quieter operation than builder-grade units, and solid stainless-steel internals – without jumping to the price of the 1 HP Pro models. If you want a disposal that feels like a real upgrade in power and noise control, the Pro750 is one of the most popular choices in the Evolution family.
Quick Specs
- Motor: 3/4 HP, 120V continuous-feed garbage disposal
- Series: InSinkErator Evolution / Pro Series (Pro750)
- Noise control: SoundSeal® technology for significantly quieter operation
- Grind components: Stainless-steel for durability and corrosion resistance
- Dimensions: Approx. 10" x 10" x 16.25"
- Weight: Around 18 lbs
- Finish: Black body with stainless-steel grind chamber components
- Average rating: ~4.7 out of 5 stars from 380+ customer reviews
Key Features & Benefits
- Mid-range 3/4 HP power: A clear step up from 1/2 HP builder-grade units, with enough muscle to handle tougher scraps from a busy family kitchen.
- Quieter than basic disposals: Owners consistently mention how much quieter the Pro750 runs compared with their old unit. The SoundSeal® insulation helps keep conversations possible while you’re running the disposal.
- Stainless-steel components: Internal grind parts are stainless-steel, designed to hold up better over years of use than cheaper galvanized steel found in entry-level models.
- Upgrade over builder’s unit: Many reviewers upgraded from a basic builder or “soft food only” disposal and noticed a big difference in grinding performance and build quality.
- Made for modern kitchens: Solid feel, smooth action on the mount, and a neat, compact look under the sink for a premium upgrade.
Performance & Noise: What It’s Like to Live With
The Pro750 is designed to deliver powerful grinding without the harsh roar that older disposals are known for. Owners regularly describe it as quiet, smooth, and efficient:
- Several recent buyers comment that it’s much quieter than their previous 1/2 HP unit and feels more solidly built.
- Users who cook regularly report that it chews through everyday scraps with ease and runs smoothly without rattling the sink.
- The combination of stainless-steel internals and Evolution sound insulation gives the Pro750 a “premium” feel even though it sits in the middle of the price range.
If your current disposal rattles the cabinets every time you flip the switch, the Pro750 will feel like a noticeable upgrade in both sound and refinement.
Size & Under-Sink Fit
Like many Evolution-series disposals, the Pro750 has a larger body than entry-level Badger-style units. That extra size helps support noise insulation and stronger internals, but it does mean you should:
- Measure the space under your sink, especially in tight cabinets or with deep pull-out drawers.
- Allow for plumbing, P-traps and any under-sink storage you still want to keep.
- Check that the height works with your existing sink depth.
Most standard kitchen cabinets will fit the Pro750 without issue, but if your current disposal is a small builder-grade model, expect the new unit to take up more space.
Installation Notes (Including the Power Cord)
The Pro750 uses InSinkErator’s standard Quick Lock® mount, which many DIY-ers find very straightforward – particularly if you’re replacing another InSinkErator disposal. A few helpful installation tips from owners:
- The power cord is not included. If you need a corded setup, you can either re-use the cord from your old unit (if it’s in good condition) or grab an InSinkErator EZ Connect power cord kit. For hard-wired setups, you can simply connect it directly according to local code.
- Check the instructions carefully around washers and mounting components. One reviewer mentioned that the manual referenced a fiber washer that wasn’t included, but the new Quick Lock® mount still tightened up correctly and didn’t leak once installed.
- As with any heavier disposal, a second set of hands can make it easier to lift and twist the unit into place under the sink.
If you’ve never installed a disposal before, a professional plumber can still knock it out very quickly – several reviewers mentioned smooth, problem-free pro installs.
Real-World Owner Feedback
Across hundreds of reviews, owners tend to agree on a few key points:
- Quieter upgrade: Shoppers upgrading from a basic 1/2 HP disposal are often surprised by how much quieter and smoother the Pro750 sounds, even while grinding tougher scraps.
- Strong everyday performance: Users note that it “does the job” without drama – it just works, day in and day out, with no clogs or jams when used sensibly.
- Solid build quality: People comment on the Pro750 feeling sturdy and well made, especially compared with builder-grade units that feel lighter or more plasticky.
- Space trade-off: A few owners mention that the Pro750 is large and takes up more cabinet space, so it may not be the right match if your under-sink area is already crowded.
- Power cord surprise: A handful of buyers were caught off-guard that the EZ Connect cord wasn’t included, so it’s worth planning this ahead of time.
Sample Customer Impressions
- One long-time owner likes that the outer housing is plastic (similar to a modern car bumper) but notes that the internal parts feel heavy and high quality. They appreciated the chance to clean up the old mounting area and found the new Quick Lock® mount easy to tighten evenly.
- A recent reviewer, an elderly homeowner who hired a pro to install it, reports that the Pro750 has run for months without a single problem and feels far superior to their old disposal, though they do point out that it takes up more room under the sink.
- Another buyer calls it a “fantastic garbage disposal” and highlights that it is quieter than their prior model, easy to install, and competitively priced for the performance it delivers.
- One reviewer upgraded from a builder-grade disposal that could only handle soft foods – they describe the Pro750 as a big step up in grinding power and overall quietness.
Pros & Cons
| Pros | Cons |
|---|---|
| Quieter than basic 1/2 HP builder-grade disposals | Larger body takes up more cabinet space under the sink |
| 3/4 HP motor offers strong everyday grinding power | Power cord not included – must reuse or buy a cord kit |
| Stainless-steel grind components for long-term durability | More expensive than entry-level Badger-style models |
| Well-reviewed with an average rating around 4.7/5 stars | Heavier unit can be a little awkward to install alone |
| Quick Lock® mount is familiar to many DIY owners and plumbers | Not the very quietest or most powerful Evolution model available |
Who Is the Pro750 Best For?
The InSinkErator Pro750 is an ideal match if:
- You want a noticeable upgrade in quietness and build quality over a basic 1/2 HP unit.
- Your household is two to five people who cook regularly and generate a moderate amount of food waste.
- You like the idea of Evolution-series performance but don’t necessarily need a full 1 HP powerhouse like the Pro1000.
- You’re prepared to measure under-sink space and, if needed, grab a compatible power cord kit.
If you want maximum power for very heavy use, take a look at the Evolution 1 HP or the Pro Series 1 HP with Evolution Technology. If you prefer a unit that comes with a factory power cord, consider the Pro750 with Cord version instead.
Accessories & Helpful Add-Ons
To get the most from your Pro750 installation, these accessories are worth considering:
- Power Cord Kit Guide – which cord options are compatible, and when to choose corded vs hard-wired.
- Dishwasher Connector Kit Guide – if you’re connecting a dishwasher drain line into the disposal.
- Sink Baffle & Stopper Guide – upgrading the baffle can further reduce splash and noise at the sink opening.
- Badger vs Evolution vs Power Comparison – a big-picture look at how the main InSinkErator families stack up.
Watch the Pro750 in Action
Want to see how a modern Evolution-series disposal runs in a real kitchen? This short video shows what to expect from an InSinkErator Evolution-style unit in terms of sound, operation and everyday use:
Final Thoughts: Is the InSinkErator Pro750 Worth It?
If you’re stepping up from a basic builder-grade disposal, the Pro750 feels like a genuine upgrade. It’s noticeably quieter, offers more grinding power, and uses stainless-steel internals that are built to last. It isn’t the cheapest unit in the InSinkErator lineup, and it does take up more under-sink space, but for many families it hits the best balance of price, performance and noise control.
For homeowners who cook regularly, want a disposal that feels premium without going to the very top of the price range, and are okay with checking cabinet space and adding a cord kit if needed, the InSinkErator Pro750 (Evolution Series) is an excellent all-round choice.
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