The Castair VP100 is a single 4" x 4" x 1" rubber vibration pad for air compressor and equipment installation. At $9.24 per pad, it's the individual unit version of the vibration isolation pads used under compressor feet. If you need to replace a single damaged or compressed-flat pad under one compressor foot, or if your installation has a non-standard number of contact points, ordering individual VP100 pads gives you exactly what you need without paying for a full set.
Single Pad vs. Full Set
Most compressor installations use four pads — one under each foot. If that's your situation, the VP1004 set of four at $34.95 is the better purchase — buying four individual VP100 pads at $9.24 each adds up to $36.96. But there are legitimate reasons to order a single pad:
- One pad has failed or compressed flat while the other three are still serviceable
- Installation has fewer than four contact points — some horizontal tank configurations use three
- You're adding a pad to a piece of equipment other than the compressor (motor mount, receiver stand, etc.)
- Shop keeps single pads in inventory for maintenance use across multiple pieces of equipment
Key Features
- Dimensions: 4" x 4" x 1" — consistent with common shop compressor foot pad size requirements
- Single Pad: Order individually, no set requirement
- Rubber Construction: Anti-vibration rubber at appropriate durometer for compressor weight loads
- Vibration Damping: Absorbs reciprocating vibration at the floor contact point
- Non-Slip: Prevents equipment from walking or shifting under vibration load
- Floor Protection: Protects concrete, epoxy, and other floor surfaces from compressor foot wear
- OEM Castair Part: Factory-specified vibration isolation component
When Vibration Pads Need Replacement
Rubber vibration pads don't last indefinitely. Under the constant weight and vibration of a shop compressor, they gradually compress and harden, losing their damping properties. Signs it's time to replace:
- Pad has visibly compressed — if the pad looks significantly thinner than new, the rubber has taken a permanent set and is no longer isolating effectively
- Pad has hardened — touch test: new rubber compresses noticeably under thumb pressure; compressed-out pads resist this
- Compressor is making more floor-transmitted noise than it used to
- Compressor has moved from its original position, indicating the non-slip properties have degraded
Available Vibration Pad Options
- VP1575 ($4.62) — 1.5" x 3/4" round rubber pads, set of 4 — small-foot equipment
- VP100 ($9.24) — 4" x 4" x 1" rubber vibration pad, single (this part)
- VP1004 ($34.95) — 4" x 4" x 1" rubber vibration pads, set of 4 — full compressor installation
- VP1003 — Castair VP1003 Vibration Pad — contact us for dimensions and specs
What's in the Box
- 1x Rubber vibration pad — 4" x 4" x 1"
Technical Specifications
- Part Number: VP100
- Manufacturer: Cast Air / Castair
- Dimensions: 4 inches x 4 inches x 1 inch
- Quantity: 1 pad
- Category: Accessories
- Price: $9.24 each
Load capacity per pad and rubber compound/durometer were not confirmed from manufacturer data. Contact us to confirm suitability for very heavy compressor applications.
Why Buy From Air Compressor Factory Direct?
- Castair Parts Specialist: We stock the full Castair vibration pad lineup in all sizes
- Free Shipping: On qualifying orders to the contiguous US
- Free Tech Support: Call 866-217-0063 if you're unsure which pad size is correct for your application
- OEM Quality: Castair-specified parts, not generic rubber mounts
- Full Manufacturer Warranty: Backed by Castair's standard product warranty
Call 866-217-0063 for quick answers and help!
