Qanvee Clamp On Gravel Vacuum S Series

Make water-changes truly hands-free. The Qanvee S3 combines a quick-prime squeeze bulb with a screw-tight rim clamp that locks the siphon to your tank, so you can focus on churning gravel instead of chasing hoses. A telescopic intake tube slides to the perfect depth, while a smooth-bore hose keeps detritus moving steadily toward the bucket.

Models:

S3

- Telescopic rigid tube: 35 – 49 cm
- Flexible hose: 152 cm ≈ 5 ft
- Tubing I.D./O.D.: 9 / 12 mm
- Rim-Clamp Knob: screws tight to the glass for genuine hands-free siphoning
- Best for: nano to mid-depth tanks and anyone who wants controlled, splash-free water changes

How it works
- Tighten the clamp knob onto the tank rim.
- Drop the intake tube, making sure the bucket is lower than the tank.
- Squeeze the primer bulb twice—water starts flowing in seconds.
- Stir the substrate; debris rises and exits while clear water.