Attractive price-Advantage：this suction cup designed for arc surface with larger cup spaces, Can lift objects whose surface is curved, such as a bathtub,and you could also use it to flat surface but your need to take more actions to have enough vacuum to lift your load.
8" in diameter heavy duty vacuum suction cup with extra strength rubber pad for a strong and ergonomic grip.Load capacity：140 lb-560 lb(maximum). which could works in -20℃ to 60℃ temperatures, and keep the vaccum for 4 hours
Check valve allows repumping without loss of remaining vacuum.Release valve lever permits quick and complete release.
Red-Line Indicator Warns User of Any Vacuum Loss. When the red line appears while lifting, simply thumb pump the plunger without removing the cup from the surfaces.
Easy access to parts.Environmental rubber,pass ROHS testing
