InSinkErator Quiet Series Garbage Disposal
- 3/4 horsepower, continuous feed
- Bio-Charge cartridge included (1 pack)
- Up to 3 levels of noise reduction
- Dura-Drive induction motor, 2-stage MultiGrind
- Lift and Latch installation
- 14 x 11 x 16 inches, 22.4 pounds
- 120 volts
- 8 year in-home limited warranty
Last refreshed Jun 15, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A quiet, continuous feed disposal built for homes on septic systems, with a cartridge system that adds microorganisms for the septic side. Its installation is designed for sinks that already hold an InSinkErator unit.
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ASIN: B000G86NUWCategory: Garbage Disposals
Overview
Not a plain disposal, the Septic Assist adds a Bio-Charge system aimed at homes with septic systems, injecting microorganisms automatically. It is a three-quarter horsepower Quiet Series unit with SoundSeal noise reduction and a Quiet Collar.
Noise reduction, a jam-resistant grinding system and septic support suit kitchens where quiet and septic compatibility both matter. The Bio-Charge system depends on its cartridge, and the mount is aimed at existing InSinkErator installations.
Who it's for
Households on septic that still want a quiet, strong disposal are the target, especially when swapping an older InSinkErator because the mount carries over. A first-time install with no existing mount should read the installation guide first.
Pros and cons
- Septic-focused Bio-Charge system
- Up to three noise reduction levels
- Jam-preventing two-stage grinding
- Alloy stainless steel grind parts
- Heavy for under-sink support
- Continuous feed only
- Cartridge supply is a single pack
Performance notes
The induction motor drives a two-stage grinding system, and torque designed to prevent jams lets it handle bones and fibrous fruit and vegetables. SoundSeal insulation reduces noise in up to three levels, and the Bio-Charge injection puts microorganisms to work on the scraps you send down the drain.
Where it stands among garbage disposals
- #7 most-searched brand and model of the 12 garbage disposals lines we track (by search demand, not sales).
From the specs of the 31 garbage disposals we list; not a test result.
Specifications
| Brand | InSinkErator |
|---|---|
| Dimensions & fit | |
| Item weight | 22.4 poundshigher than 100% of 27 garbage disposals |
| Product dimensions | 14 x 11 x 16 inches |
| Capacity & performance | |
| Noise reduction | Up to 3 levels (SoundSeal) |
| Power & efficiency | |
| Horsepower | 3/4 horsepower |
| Voltage | 120 volts |
| Construction & materials | |
| Material | Galvanized steel, enamel finish |
| Color | Gray |
| Grind material | Alloy stainless steel, 2-stage MultiGrind |
| Compatibility & installation | |
| Installation type | Lift and Latch, fits existing InSinkErator mounts |
| Included components | |
| Included Components | Quiet Collar, Bio-Charge cartridge |
| Warranty & support | |
| Warranty Description | 8 year in-home limited |
| Other details | |
| Feed type | Continuous feed |
| Motor type | Dura-Drive induction |
| Septic system | Bio-Charge cartridge, 1 pack included |
Closest rivals on specs
InSinkErator Evolution Pro 750 Garbage Disposal 3/4 HP- Item weight 22.4 vs 18 pounds (+24%)
KRAUS WasteGuard KWD211-75MCG Garbage Disposal 3/4 HP- Item weight 22.4 vs 11.9 pounds (+88%)
Whirlpool WG1202XH Garbage Disposal 1/2 HP- Item weight 22.4 vs 13.64 pounds (+64%)
Frequently asked questions
What is included with the InSinkErator Evolution Septic Assist?
The title lists a one-pack Bio-Charge cartridge and the description lists a Quiet Collar. The listing does not mention a switch or power cord.
Does the Septic Assist fit an existing InSinkErator mount?
It is engineered to fit existing InSinkErator disposals and uses Lift and Latch installation for a quicker sink connection.
Are InSinkErator disposals safe for septic systems?
The description says all InSinkErator disposals are septic friendly, and the Septic Assist adds Bio-Charge for homes with septic systems.