K&F 3″ Dual Suction Mount Kit with Three Mounting Accessories | KF31.135S1

Two-point stability for the shots single-cup mounts can't hold

The K&F Concept Dual Suction Cup Camera Mount | KF31.135S1 is designed for videographers and content creators who need a stable, redundant mounting solution for vehicle-based shoots, windscreen or dashboard camera placement, window-mounted time-lapses or tabletop setups where traditional tripods won't fit. The dual 8cm suction cups joined by a rigid bar create a two-point contact system that distributes load across independent vacuum seals, eliminating the single-point failure risk that makes photographers nervous when trusting expensive gear to one suction cup. A ball joint at each mounting point of the suction cups allows for this to be used even on curved surfaces like a modern car's roof, door, bonnet or Windshield. Each cup uses a pump-activated vacuum mechanism to attach securely to smooth, flat surfaces without drilling or leaving marks, making it ideal for car bonnets, windscreens, glass windows and polished tables. The included magic arm features dual ball heads with 360° rotation and a 2kg load capacity, controlled by a single quick-lock knob, allowing precise positioning without needing to reposition the base. The system works across multiple devices, the included phone mount and action camera adapter mean you can switch between smartphone, action cam and lighter mirrorless setups using the same suction base. With aluminium construction, ARRI locating pin compatibility, visual vacuum warning indicators on both cups, and dedicated safety rope attachment points, this mount delivers professional-grade stability in a 591g package that fits in a daypack.

Two-point vacuum system for load distribution and redundancy
The dual-suction design solves the anxiety that comes with trusting expensive gear to one vacuum seal. Two independent suction cups distribute load and provide redundancy if one cup loses pressure, the rigid bar joining the cups creates a stable platform that resists twisting forces better than a single-cup mount. This is critical when a magic arm extends a camera away from the mounting plane and creates leverage that would overwhelm a single suction point. Each cup is rated 20kg horizontal and 15kg vertical, comfortable territory for full-frame bodies with telephoto lenses, but the real benefit is psychological, the buyer can trust the mount during longer unsupervised shoots where a single suction point feels too risky.

15° micro-adjustment for curved surfaces
The ball head micro-adjustment capability allows attachment to slightly curved surfaces like car bonnets or gently curved windscreens where a single large cup might not seal fully. The 15° articulation compensates for minor surface irregularities, expanding the mounting surface compatibility beyond perfectly flat glass. This is the specific technical capability that makes the dual-cup system more versatile than a single large suction cup, which requires a perfectly flat contact area to seal properly. The buyer trying to mount to a car bonnet with a slight convex curve will fail with a rigid mount but succeed with this micro-adjustment capability.

Visual vacuum warning for real-time pressure monitoring
Each pump body features a visual warning indicator line that shows a red band when suction pressure drops below safe operating threshold. This alerts you to re-pump before the mount fails, protecting your camera from a drop. Temperature changes are the most common cause of vacuum loss, a windscreen that's cold in the morning will warm up in direct sunlight, causing the air inside the suction cup to expand and weaken the seal. The dual indicators provide real-time pressure monitoring across the entire system, so you can glance at both cups and know instantly whether it's safe. Always check both indicators before starting a take and between setups, especially during longer shoots or when working in changing environmental conditions.

Magic arm articulation for multiple angles from one mounting position
The included magic arm uses dual ball heads with 360° rotation, allowing you to position a camera or accessory at any angle using a single quick-lock knob. This means you can frame a dashboard POV shot, then pivot to a side-window angle without remounting the suction base, which is critical when the suction point is the only viable attachment location in a vehicle interior. The articulation reduces setup time and allows fine adjustments during a shoot without needing to break the vacuum seal and reposition the entire mount. For working professionals, this translates to faster turnarounds between takes and the ability to capture multiple angles from a single mounting position. The magic arm has a 2kg load capacity, which accommodates action cameras, smartphones, compact cameras and lighter mirrorless bodies with kit lenses comfortably.

Multi-device support with included adapters
The system includes a spring-loaded phone clip and a GoPro-compatible three-prong adapter, allowing you to switch between filming with your phone, action cam and mirrorless camera using the same suction base. The phone clip fits devices with case widths up to approximately 9cm, covering most current smartphones. The action camera adapter mounts GoPro cameras, DJI Osmo Action, Insta360 and any action camera following the GoPro mounting standard. This eliminates the need to carry separate mounts for each device type, which matters when you're moving quickly between setups on location or shooting behind-the-scenes content on your phone before switching to the main camera.

Professional mounting interfaces and anti-rotation security
The aluminium mounting block provides multiple 1/4" screw holes and ARRI locating pin holes for anti-rotation security. This means you can mount cameras, field monitors, LED panels or other accessories that have standard tripod threads without needing adapters. The ARRI locating pin holes prevent accessories from twisting under their own weight or vibration, which is critical when mounting a field monitor or light where a single-screw mount would normally drift out of alignment during a vehicle shoot. The multiple attachment points and professional rigging compatibility signal that this mount is designed for working professionals who need to integrate it into existing workflows rather than casual users looking for a basic phone holder.

Aluminium construction with protective dust covers
Unlike plastic suction mounts that feel flimsy and unreliable, the aluminium construction provides durability and stability that instils confidence when handling expensive gear. The material resists corrosion and impact damage from frequent use in the field. The included protective dust covers cap the rubber suction feet when stored, preventing grit and debris from contaminating the seal surface. This maintains a clean seal shoot after shoot, preventing the gradual loss of suction that ruins cheaper mounts after a few uses. For operators who store the mount in a camera bag between jobs, the dust covers are the difference between a mount that works reliably for years and one that fails after a handful of shoots.

Safety lanyard attachment for vehicle shoots
Dedicated safety rope hanging holes provide attachment points for a secondary safety tether independent of the suction mechanism. This catches your camera if the vacuum fails, meeting insurance and safety requirements for professional vehicle shoots. Never rely on suction alone when rigging a camera to the outside of a moving car, the backup tether is mandatory to protect expensive gear and prevent road hazards. The safety holes are positioned to allow a tether line without interfering with the magic arm's articulation, so you can secure the camera and still adjust framing freely.

The K&F Concept Dual Suction Cup Camera Mount | KF31.135S1 is a practical solution for photographers, videographers and content creators who need a stable, redundant mounting system for vehicle-based shoots, window-mounted time-lapses and tabletop setups. With dual pump-activated vacuum cups, visual warning indicators, multi-device support, professional mounting interfaces and a compact 591g weight, it delivers reliable two-point stability in a daypack-carry package. Order the KF31.135S1 today and gain the mounting confidence you need for your next shoot.

Frequently Asked Questions

Frequently Asked Questions:
Q: Can I use this on a car bonnet while the vehicle is moving?
A: Yes, but only with the safety lanyard attached through the dedicated hanging holes on both suction cups. The 20kg horizontal capacity per cup handles the weight and vibration of a moving vehicle, but temperature changes, road vibration and airflow can weaken the vacuum over time. Check the warning indicator lines every few minutes during a moving shoot and add a few pumps even before the red band appears. Never rely on suction alone for exterior vehicle mounting, insurance and professional safety standards require a backup attachment method.

Q: Will this work on textured or painted surfaces?
A: Only if the surface is smooth and non-porous. Factory car paint, gloss-finished bonnets, windscreens and polished tiles work well. Textured dashboards, matte-finish paint, pebbledash walls or any surface with visible grain or texture will not form an airtight seal. The suction cups need a completely flat contact area to evacuate air and create the vacuum. If you can feel texture with your fingertip, the mount will not hold.

Q: Does the connecting bar between the two suction cups adjust for different widths?
A: No, the bar is fixed-length rigid aluminium. The two suction cups are positioned at a set distance apart, which provides a stable two-point contact base but does not adjust. This fixed spacing works well for most vehicle windscreens and tabletops, but if you need to mount across a very wide or very narrow surface, the spacing cannot be changed. You can separate the cups and use the system as a single point if you want that level of flexibility.

Q: Can I mount a field monitor or LED panel instead of a camera?
A: Yes, as long as the total weight stays under 2kg and the accessory has a 1/4" thread. Small LED panels like the Aputure AL-M9 or a 5-inch field monitor will work. Larger monitors or panel lights with their own battery packs usually exceed the 2kg limit. The multiple 1/4" screw holes and ARRI locating pin compatibility mean you can mount accessories that would normally rotate under their own weight on a single-screw setup.

Q: How do I know when the suction is failing?
A: Each pump body has a visual warning indicator line that appears red when vacuum pressure drops below safe operating threshold. If you see the red band on either cup, stop shooting and add several pumps until the line disappears. Temperature changes are the most common cause, a windscreen that's cold in the morning will warm up in direct sunlight, causing the air inside the suction cup to expand and weaken the seal. Always check both indicators before starting a take and between setups.

Q: Does the mount leave marks or residue on car paintwork?
A: No. The rubber suction feet are designed for clean removal without adhesive or residue. Push the two quick-release grip tabs inward on each cup to break the vacuum seal, and the mount lifts off without prying or scraping. The only risk is mounting to a dirty surface, grit trapped under the suction cup can scratch paint when you remove the mount. Always clean the mounting surface and both suction feet before attachment.

Technical Specifications:
- Suction Cup Configuration: Dual 8cm (3 inch) suction cups with rigid connecting bar
- Per-Cup Load Capacity: 20kg horizontal, 15kg vertical
- Magic Arm Load Capacity: 2kg maximum combined load across arm and all attached gear
- Ball Head Rotation: 360° dual-ball articulation with single quick-lock knob
- Mounting Threads: Multiple 1/4" screw holes with ARRI locating pin compatibility
- Construction Material: Aluminium alloy with rubber suction cups
- Suction Mechanism: Pump-activated vacuum with visual red-band warning indicator
- Quick Release: Pinch tab mechanism for instant vacuum seal release
- Surface Compatibility: Smooth, flat, non-porous surfaces (windscreens, bonnets, glass, ceramic tiles, sealed wood)
- Safety Features: Dedicated safety rope attachment point and visual vacuum warning system
- Weight: 591g
- Warranty: Limited 2-year warranty