3 Bolt vs EZ Mount: Which Garbage Disposal Mount is Best?
Every garbage disposal uses one of two mounting systems: 3 bolt vs EZ mount. The mount determines how the disposal attaches to your sink drain. Before buying a new disposal, you need to know which mount you currently have — or be prepared to swap the mounting hardware.
3 bolt mount vs eZ mount comparison table
| Feature | 3-Bolt Mount | EZ Mount |
|---|---|---|
| Used by | InSinkErator, Moen, some Waste King | Waste King (most models) |
| Installation method | Align 3 bolts, tighten with screwdriver | Twist and lock (tool-free) |
| Install time | 30–45 minutes | 15–20 minutes |
| Sink flange material | Stainless steel | Plastic (with stainless steel finish) |
| Splash guard | Fixed (non-removable on most) | Removable |
| Vibration resistance | Excellent (3-point contact) | Good (single contact point) |
| Weight support | Better for heavy disposals (15–20+ lbs) | Better for lighter disposals (7–12 lbs) |
| Stability | More stable | Slightly less stable |
3-Bolt Mount: Strength and Stability
The 3-bolt system secures the disposal to a stainless steel mounting ring with three bolts and a snap ring. This three-point contact distributes weight evenly and resists vibration better than a single-point mount. It is the standard for heavier, premium disposals like the InSinkErator Evolution series (17-20+ lbs).
Pros: More stable, less vibration, stainless steel flange, supports heavy units
Cons: Slower to install, requires tools (screwdriver, possibly pliers), heavier mounting hardware
EZ Mount: Speed and Simplicity
The EZ Mount system uses a twist-and-lock mechanism. You push the disposal up, twist it clockwise, and it locks into place. No bolts, no tools. This makes it the fastest mount to install and the easiest for DIY homeowners.
The trade-off: the plastic flange (coated in stainless steel finish) is lighter and less durable than a true stainless steel flange. The single-point lock provides slightly less vibration resistance than three-point 3-bolt contact.
Pros: Tool-free, 15-minute install, removable splash guard, lighter
Cons: Plastic flange, slightly more vibration, less support for very heavy units
Brand mount system Compatibility
| Brand | Mount Types Used |
|---|---|
| InSinkErator | 3-bolt only |
| Moen | Mostly 3-bolt (some use Universal Xpress) |
| Waste King | EZ Mount (most models), some 3-bolt |
| KRAUS | 3-bolt |
| GE | 3-bolt |
| Frigidaire | 3-bolt |
| Waste Maid | 3-bolt |
Important: 3-bolt and EZ Mount are not interchangeable without replacing the mounting hardware. If you have a 3-bolt mount from an old InSinkErator and want to switch to a Waste King EZ Mount disposal, you need to remove the old mounting assembly and install the new one. This adds 15-20 minutes to installation but is a one-time change.
Which One Should You Choose?
Keep your current mount if possible. Replacing the mount assembly adds time and complexity. If you already have a 3-bolt mount, buy a 3-bolt disposal. If you have an EZ Mount, buy an EZ Mount disposal.
If buying your first disposal or remodeling:
- Choose 3-bolt if you want maximum stability and plan to use a heavy, premium disposal (InSinkErator Evolution, KRAUS WasteGuard)
- Choose EZ Mount if you want the fastest, easiest installation and plan to use a lighter Waste King disposal
For help choosing a disposal after you know your mount type, see our best garbage disposals guide.
Conclusion
Keep your existing mount and buy a compatible disposal. That is the simplest path.
If starting fresh, choose 3-bolt for heavier premium disposals and maximum stability. Choose EZ Mount for fastest DIY installation with lighter Waste King units.
Neither mount affects disposal performance. This is purely an installation convenience decision.
FAQ’s
The Author
Muhammad Nabeel Dar is the founder of GarbageWasteDisposal.com and an SEO researcher focused on creating informational resources about garbage disposals and kitchen appliances. His work involves researching appliance performance, analyzing user questions, and structuring helpful guides that simplify complex kitchen appliance topics. Through this website, he shares researched insights to help homeowners better understand appliance maintenance, product comparisons, and everyday kitchen solutions.
