Wide Applications - for Micro-Clear Vertical Grid, for Perflex Extended-Cycle D.E. Filter model I_PFPPTS, EC30, EC40, EC40AC, S160T S200 S240, S245T, S190T; for Hayward Pro Series Sand Filter models S210S, S244S, S310S, S140T, S144T, S180T, S210T, S220T, S220T2, S230T, S244T, S244T2, S270T, S164T, S166T Perfect Replacement - This pressure gauge is perfect for Hayward sand filter. It's built based on Mpa & PSI measuring methods. The round dial face features easy to get accurate pressure readings, from zero to 60. brass 1/4-in threaded connections and PTFE tape (package included) provide a tight seal to the filter system. Superior Material - Made of hard-wearing stainless steel housing, transparent plastic dial cover and brass 1/4-in bottom-mount connection. Its dial super clear, a just-right replacement for the clouded and cracked old pressure gauge. Moisture will NOT accumulate inside the gauge either. Designed to withstand rough, frequent and extreme weather, so you can cut back on time, effort and expenses for your outdoor pool maintenance. Easy to Install - First, turn off the power. Second, unscrew the sight glass and old pressure gauge. Then wrap PTFE tape around the threads. Finally, simply turn clockwise to reinstall. NOTE: Make sure it is plumb for accuracy and proper function. Colour:As Shown Material:Metal+Plastic Package Contents: 1 x Pressure Gauge Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.