Winter Pool Plug with Blow Thru Valve for 4 Inch Pipe - # 16 fitting-connection_Slip It does include a swivel

It does include a swivel adapter that allows you to use a 1-1/2 inch hose if needed

Now FlowVis is the first flow meter to display the velocity reading as a standard feature

it is great for smaller pools that want to offer swim training

26 square feet

Pool Rover

Winter Pool Plug with Blow Thru Valve for 4 Inch Pipe - # 16 fitting-connection_Slip It does include a swivelThis number 16 pool plug with valve creates a tight seal for a 4 inch PVC pipe. Includes a blow through valve for inserting compressed air into lines. Open stem plugs (or plugs with blow thru valves) use the same rubber, large wing nuts and corrosion free materials as closed plugs except they have an opening that passes through the center of the stem. They are similar to bike tire valves. This opening allows introduction of air or water pressure into