Here are the detailed specs + buying info for the Tether Tools Rock Solid Vacuum PowrGrip with Ballhead Assembly (RSPG45), plus similar products as alternatives.
đ§ Specs & Features
| Feature | Detail |
|---|---|
| Model / SKU | RSPG45 â âPowrGrip 4.5âł with Ball Head Assemblyâ B&H Photo Video+2Polyline Corp+2 |
| Mounting Pad Size | 4.5 in (ââŻ11 cm) diameter Woodâs PowrGrip vacuum pad Polyline Corp+2B&H Photo Video+2 |
| Maximum Load Capacity | Up to 10 lb (ââŻ4.5 kg) on flat, nonâporous surfaces Design Info+2Team Digital+2 |
| Thread / Ball Head | Comes with a Âźâ20 ball head assembly for angling your device; the ball head is removable to expose standard Âźâ20 thread for other accessories. Polyline Corp+2B&H Photo Video+2 |
| Vacuum System | Handâactuated pump; vacuum seal technology from Woodâs PowrGrip. Includes a redâline indicator if vacuum drops. Adorama+2Polyline Corp+2 |
| Surfaces Compatible | Works on flat, smooth, nonâporous surfaces (glass, counters, mirrors, boat surfaces, car, etc.) Design Info+1 |
| Included Accessories | Pad protector; ball head; warranty; packaging info etc. B&H Photo Video+1 |
â What Itâs Good For
Mounting tablets (like iPads, Galaxy Tab etc.), small to moderately sized DSLRs, or video cameras up to ~10 lb, in positions where you can find a smooth nonâporous surface to stick it to.
Flexible angle adjustments thanks to the ball head. Good for onâset mobile setups, car windows, glass, mirrors, etc.
Fast releasing and remounting. Useful in field or dynamic environments where you often move the mount from one surface to another.

â ď¸ Limitations & Practical Considerations
The load capacity is best achieved when the device is kept close to the mount without long extensions. Larger lever arms (long arms, accessories) will reduce effective holding strength.
Surface must be smooth, clean, dry. Any dust, dirt, moisture, or porosity will reduce suction.
Environmental effects (heat, cold, humidity) may affect seal and holding power over time.
Vacuum seals wear; pad may degrade. Need to maintain / clean pad, use pad protector when not in use.
If the pad is placed on curved surfaces (e.g., curved car panels) or poorly finished surfaces, the grip might be compromised.



