CRL Wood's Powr-Grip® High-Elevation Vacuum Cup

Designed for Use at Elevations Up to 12,000' (3.6 km) Blue Plunger Enables User to Distinguish this 8" (203 mm) Vacuum Cup from Standard Cups Fast Attachment on Smooth, Non-porous Flat Surfaces Red-line Indicator Warns User of Any Vacuum Loss For years, there has been a void in the vacuum lifting market when it comes to performance at higher elevations. CRL Wood's Powr-Grip® W4100 is a new breed of vacuum cup that is specifically designed to fill this void and function at elevations up to 12,000' (3.6 km). Lifting capacity is 100 lbs. (45 kg).The W4100 features a lightweight, rugged ABS handle that helps prevent user fatigue. It attaches rapidly to smooth, flat non-porous surfaces ranging from glass to metal. While in use, the CRL Wood's Powr-Grip® red-line indicator warns the user of any loss of vacuum. If the red line should appear during use, a special check valve allows re-pumping without loss of remaining vacuum so the user can continue working without having to reattach to the l