Winter Pool Plug with Blow Thru Valve for 1-1/2 Inch Fitting - # 9.5 express-surcharge Two square 9/16 × 9/16

Two square 9/16 × 9/16 inch holes on center distance of 12 inches

This adjustable flow pump is rated to pump 70 gallons of chemicals per day at 25 PSI

0 ppm chlorine is established

this Rainbow #905 covers a wider surface area

This is a PVC Male Adapter with MIPT x Slip fitting connections that measure 5 Inch

Winter Pool Plug with Blow Thru Valve for 1-1/2 Inch Fitting - # 9.5 express-surcharge Two square 9/16 × 9/16This number 9. 5 pool plug with valve creates a tight seal for a 1 1 2 inch PVC fitting. 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