Nautilus Tank O-Ring - 18 Inch max-PSI_100 The K-1443 Kit tests for

The K-1443 Kit tests for Hydrogen Peroxide (undiluted strength) using a drop test system and iodometric method/chemistry

and is designed to warn patrons to not allow children under age 13 to use the pool or spa unattended where there is no lifeguard on duty

The main lettering height is 4 inch

This model 1/2 Meter Steel diving stand is a durable and strong diving tower that supports that weight

Nautilus Tank O-Ring - 18 Inch max-PSI_100 The K-1443 Kit tests forThis is a Pentair Tank O Ring replacement for Nautilus Pool Filters. This O Ring is approximately 18 Inches in diameter. This o ring has been manufactured in accordance with OEM specifications and is designed to meet or exceed the original manufacturer specifications.