Pentair 12 Inch Flexible Vacuum Head for Concrete and Gunite PoolsThe Pentair R201388 12 Inch Flexible Vacuum Head for Concrete and Gunite Pools is a flexible vacuum head for cleaning your pool bottom. Combine this product with a skimmer adapter, vacuum hose and extension pole to manually vacuum your pool. Rainbow Lifeguard Model #203 12 Inch Width 4 Weights Under Plastic Covers Non Adjustable Plastic Wheels Handle Attached with Stainless Spring and Plastic Pin Attaches to Pentair Extension Poles Attaches to 1 1 2