2" 060PSI 1/4" Bottom Mount Pressure allows you to easily read the pressure gauge on your pool filter. Replacing your pressure gauge when it is cracked or worn out over time can give you more accurate pressure gauge readings which can ultimately improve the performance of your pool filter. This 2 inch Replacement Bottom Mount Pressure Gauge is designed to directly replace the bottom mount pressure gauge on the most common pool filters, and its heavy duty design means it’s built to last.