Emergency Use Only USCG Solid Foam 20 Inch Life Ring Buoy - Orange filter-length_26 1/16 inches It has a #7 1-1/4

It has a #7 1-1/4 inch bottom pipe plug and a #9 1-1/2 inch pipe top plug

This is a Pentair 7

filter can also be easily converted to a cartridge filter by replacing the internals

You can use it to test touchpads

Testing your swimming pool pH is one of the most important water chemical tests for water balance

Emergency Use Only USCG Solid Foam 20 Inch Life Ring Buoy - Orange filter-length_26 1/16 inches It has a #7 1-1/4This is an orange pre printed 20 inch U. S. C. G. ring buoy with Emergency Use Only in black. Our life ring buoys are manufactured under strict codes and the supervision of the United States Coast Guard. They have solid, closed cell plastic throughout. Soft and resilient to the touch yet are almost indestructible! The Soft Tex surface resists weather and temperature extremes and will not rot or mildew.